Uncaught exception thrown in session handler.

Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 1206 The total number of locks exceeds the lock table size: UPDATE "sessions" SET "uid"=:db_update_placeholder_0, "hostname"=:db_update_placeholder_1, "session"=:db_update_placeholder_2, "timestamp"=:db_update_placeholder_3 WHERE "sid" = :db_condition_placeholder_0; Array ( [:db_update_placeholder_0] => 0 [:db_update_placeholder_1] => 172.20.0.5 [:db_update_placeholder_2] => _symfony_flashes|a:1:{s:5:"error";a:6:{i:0;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:2103:"<em class="placeholder">Deprecated function</em>: explode(): Passing null to parameter #2 ($string) of type string is deprecated in <em class="placeholder">university_pro_preprocess_html()</em> (line <em class="placeholder">124</em> of <em class="placeholder">themes/custom/university_pro/university_pro.theme</em>). <pre class="backtrace">university_pro_preprocess_html(Array, &#039;html&#039;, Array) (Line: 287) Drupal\Core\Theme\ThemeManager-&gt;render(&#039;html&#039;, Array) (Line: 422) Drupal\Core\Render\Renderer-&gt;doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer-&gt;render(Array) (Line: 162) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 163) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber-&gt;onViewRenderArray(Object, &#039;kernel.view&#039;, Object) call_user_func(Array, Object, &#039;kernel.view&#039;, Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.view&#039;) (Line: 163) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache-&gt;fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache-&gt;lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 49) Asm89\Stack\Cors-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}i:1;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:2103:"<em class="placeholder">Deprecated function</em>: explode(): Passing null to parameter #2 ($string) of type string is deprecated in <em class="placeholder">university_pro_preprocess_html()</em> (line <em class="placeholder">125</em> of <em class="placeholder">themes/custom/university_pro/university_pro.theme</em>). <pre class="backtrace">university_pro_preprocess_html(Array, &#039;html&#039;, Array) (Line: 287) Drupal\Core\Theme\ThemeManager-&gt;render(&#039;html&#039;, Array) (Line: 422) Drupal\Core\Render\Renderer-&gt;doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer-&gt;render(Array) (Line: 162) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 163) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber-&gt;onViewRenderArray(Object, &#039;kernel.view&#039;, Object) call_user_func(Array, Object, &#039;kernel.view&#039;, Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.view&#039;) (Line: 163) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache-&gt;fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache-&gt;lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 49) Asm89\Stack\Cors-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}i:2;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:2021:"<em class="placeholder">Deprecated function</em>: explode(): Passing null to parameter #2 ($string) of type string is deprecated in <em class="placeholder">university_pro_preprocess_html()</em> (line <em class="placeholder">124</em> of <em class="placeholder">themes/custom/university_pro/university_pro.theme</em>). <pre class="backtrace">university_pro_preprocess_html(Array, &#039;html&#039;, Array) (Line: 287) Drupal\Core\Theme\ThemeManager-&gt;render(&#039;html&#039;, Array) (Line: 422) Drupal\Core\Render\Renderer-&gt;doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer-&gt;render(Array) (Line: 162) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 163) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber-&gt;onViewRenderArray(Object, &#039;kernel.view&#039;, Object) call_user_func(Array, Object, &#039;kernel.view&#039;, Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.view&#039;) (Line: 163) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache-&gt;pass(Object, 1, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 49) Asm89\Stack\Cors-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}i:3;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:2021:"<em class="placeholder">Deprecated function</em>: explode(): Passing null to parameter #2 ($string) of type string is deprecated in <em class="placeholder">university_pro_preprocess_html()</em> (line <em class="placeholder">125</em> of <em class="placeholder">themes/custom/university_pro/university_pro.theme</em>). <pre class="backtrace">university_pro_preprocess_html(Array, &#039;html&#039;, Array) (Line: 287) Drupal\Core\Theme\ThemeManager-&gt;render(&#039;html&#039;, Array) (Line: 422) Drupal\Core\Render\Renderer-&gt;doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer-&gt;render(Array) (Line: 162) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 163) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber-&gt;onViewRenderArray(Object, &#039;kernel.view&#039;, Object) call_user_func(Array, Object, &#039;kernel.view&#039;, Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.view&#039;) (Line: 163) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache-&gt;pass(Object, 1, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 49) Asm89\Stack\Cors-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}i:4;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:2021:"<em class="placeholder">Deprecated function</em>: explode(): Passing null to parameter #2 ($string) of type string is deprecated in <em class="placeholder">university_pro_preprocess_html()</em> (line <em class="placeholder">124</em> of <em class="placeholder">themes/custom/university_pro/university_pro.theme</em>). <pre class="backtrace">university_pro_preprocess_html(Array, &#039;html&#039;, Array) (Line: 287) Drupal\Core\Theme\ThemeManager-&gt;render(&#039;html&#039;, Array) (Line: 422) Drupal\Core\Render\Renderer-&gt;doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer-&gt;render(Array) (Line: 162) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 163) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber-&gt;onViewRenderArray(Object, &#039;kernel.view&#039;, Object) call_user_func(Array, Object, &#039;kernel.view&#039;, Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.view&#039;) (Line: 163) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache-&gt;pass(Object, 1, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 49) Asm89\Stack\Cors-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}i:5;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:2021:"<em class="placeholder">Deprecated function</em>: explode(): Passing null to parameter #2 ($string) of type string is deprecated in <em class="placeholder">university_pro_preprocess_html()</em> (line <em class="placeholder">125</em> of <em class="placeholder">themes/custom/university_pro/university_pro.theme</em>). <pre class="backtrace">university_pro_preprocess_html(Array, &#039;html&#039;, Array) (Line: 287) Drupal\Core\Theme\ThemeManager-&gt;render(&#039;html&#039;, Array) (Line: 422) Drupal\Core\Render\Renderer-&gt;doRender(Array, ) (Line: 201) Drupal\Core\Render\Renderer-&gt;render(Array) (Line: 162) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;Drupal\Core\Render\MainContent\{closure}() (Line: 564) Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 163) Drupal\Core\Render\MainContent\HtmlRenderer-&gt;renderResponse(Array, Object, Object) (Line: 90) Drupal\Core\EventSubscriber\MainContentViewSubscriber-&gt;onViewRenderArray(Object, &#039;kernel.view&#039;, Object) call_user_func(Array, Object, &#039;kernel.view&#039;, Object) (Line: 142) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.view&#039;) (Line: 163) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 80) Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 106) Drupal\page_cache\StackMiddleware\PageCache-&gt;pass(Object, 1, 1) (Line: 85) Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 49) Asm89\Stack\Cors-&gt;handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23) Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 708) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}}}_sf2_meta|a:3:{s:1:"u";i:1791661092;s:1:"c";i:1791661092;s:1:"l";i:200000;} [:db_update_placeholder_3] => 1791661095 [:db_condition_placeholder_0] => 2TfrerL2pfHKl30Avg0EXrU0Mvypb4ZbAEyORSh1rw8 ) in Drupal\Core\Session\SessionHandler->write() (line 87 of /var/www/html/portail/core/lib/Drupal/Core/Session/SessionHandler.php).

Drupal\Core\Session\SessionHandler->write() (Line: 95)
Drupal\Core\Session\WriteSafeSessionHandler->write() (Line: 71)
Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy->write()
session_write_close() (Line: 268)
Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->save() (Line: 196)
Drupal\Core\Session\SessionManager->save() (Line: 191)
Symfony\Component\HttpFoundation\Session\Session->save() (Line: 61)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 49)
Asm89\Stack\Cors->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 23)
Stack\StackedHttpKernel->handle() (Line: 708)
Drupal\Core\DrupalKernel->handle() (Line: 19)


The website encountered an unexpected error. Please try again later.
RuntimeException: Failed to start the session because headers have already been sent by "/var/www/html/portail/core/lib/Drupal/Core/Session/SessionHandler.php" at line 96. in Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() (line 152 of vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php).
Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start() (Line: 162)
Drupal\Core\Session\SessionManager->startNow() (Line: 110)
Drupal\Core\Session\SessionManager->start() (Line: 57)
Symfony\Component\HttpFoundation\Session\Session->start() (Line: 240)
Drupal\big_pipe\Render\BigPipe->performPreSendTasks() (Line: 295)
Drupal\big_pipe\Render\BigPipe->sendContent() (Line: 112)
Drupal\big_pipe\Render\BigPipeResponse->sendContent() (Line: 381)
Symfony\Component\HttpFoundation\Response->send() (Line: 20)