Uncaught exception thrown in session handler.

Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: INSERT INTO "sessions" ("sid", "uid", "hostname", "session", "timestamp") VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4); Array ( [:db_insert_placeholder_0] => XqOCNIlyEpMsYbwbPBewHDbClqkP5X5PVye38APjk_I [:db_insert_placeholder_1] => 0 [:db_insert_placeholder_2] => 3.145.179.252 [:db_insert_placeholder_3] => _symfony_flashes|a:1:{s:5:"error";a:1:{i:0;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:1703:"<em class="placeholder">User error</em>: Redirects to external URLs are not allowed by default, use \Drupal\Core\Routing\TrustedRedirectResponse for it. in <em class="placeholder">Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl()</em> (line <em class="placeholder">89</em> of <em class="placeholder">core/lib/Drupal/Core/EventSubscriber/RedirectResponseSubscriber.php</em>). <pre class="backtrace">Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl(Object, &#039;kernel.response&#039;, Object) call_user_func(Array, Object, &#039;kernel.response&#039;, Object) (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.response&#039;) (Line: 196) Symfony\Component\HttpKernel\HttpKernel-&gt;filterResponse(Object, Object, 1) (Line: 142) Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 74) 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: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 686) Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19) </pre>";}}}_sf2_meta|a:3:{s:1:"u";i:1717722721;s:1:"c";i:1717722721;s:1:"l";i:2000000;} [:db_insert_placeholder_4] => 1717722720 ) in Drupal\Core\Session\SessionHandler->write() (line 87 of /external/src/web/core/lib/Drupal/Core/Session/SessionHandler.php). 

Drupal\Core\Session\SessionHandler->write('X6VP6776Hm4KBu5,Jf292oHPmpZEE5uxmenalwN1llUENO97', '_symfony_flashes|a:1:{s:5:"error";a:1:{i:0;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:1703:"<em class="placeholder">User error</em>: Redirects to external URLs are not allowed by default, use \Drupal\Core\Routing\TrustedRedirectResponse for it. in <em class="placeholder">Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl()</em> (line <em class="placeholder">89</em> of <em class="placeholder">core/lib/Drupal/Core/EventSubscriber/RedirectResponseSubscriber.php</em>). Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl(Object, &#039;kernel.response&#039;, Object)
call_user_func(Array, Object, &#039;kernel.response&#039;, Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.response&#039;) (Line: 196)
Symfony\Component\HttpKernel\HttpKernel-&gt;filterResponse(Object, Object, 1) (Line: 142)
Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 74)
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: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 686)
Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19)
";}}}_sf2_meta|a:3:{s:1:"u";i:1717722721;s:1:"c";i:1717722721;s:1:"l";i:2000000;}') (Line: 95)
Drupal\Core\Session\WriteSafeSessionHandler->write('X6VP6776Hm4KBu5,Jf292oHPmpZEE5uxmenalwN1llUENO97', '_symfony_flashes|a:1:{s:5:"error";a:1:{i:0;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:1703:"<em class="placeholder">User error</em>: Redirects to external URLs are not allowed by default, use \Drupal\Core\Routing\TrustedRedirectResponse for it. in <em class="placeholder">Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl()</em> (line <em class="placeholder">89</em> of <em class="placeholder">core/lib/Drupal/Core/EventSubscriber/RedirectResponseSubscriber.php</em>). Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl(Object, &#039;kernel.response&#039;, Object)
call_user_func(Array, Object, &#039;kernel.response&#039;, Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.response&#039;) (Line: 196)
Symfony\Component\HttpKernel\HttpKernel-&gt;filterResponse(Object, Object, 1) (Line: 142)
Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 74)
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: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 686)
Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19)
";}}}_sf2_meta|a:3:{s:1:"u";i:1717722721;s:1:"c";i:1717722721;s:1:"l";i:2000000;}') (Line: 54)
Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy->write('X6VP6776Hm4KBu5,Jf292oHPmpZEE5uxmenalwN1llUENO97', '_symfony_flashes|a:1:{s:5:"error";a:1:{i:0;O:25:"Drupal\Core\Render\Markup":1:{s:9:"*string";s:1703:"<em class="placeholder">User error</em>: Redirects to external URLs are not allowed by default, use \Drupal\Core\Routing\TrustedRedirectResponse for it. in <em class="placeholder">Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl()</em> (line <em class="placeholder">89</em> of <em class="placeholder">core/lib/Drupal/Core/EventSubscriber/RedirectResponseSubscriber.php</em>). Drupal\Core\EventSubscriber\RedirectResponseSubscriber-&gt;checkRedirectUrl(Object, &#039;kernel.response&#039;, Object)
call_user_func(Array, Object, &#039;kernel.response&#039;, Object) (Line: 111)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher-&gt;dispatch(Object, &#039;kernel.response&#039;) (Line: 196)
Symfony\Component\HttpKernel\HttpKernel-&gt;filterResponse(Object, Object, 1) (Line: 142)
Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 74)
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: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 686)
Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19)
";}}}_sf2_meta|a:3:{s:1:"u";i:1717722721;s:1:"c";i:1717722721;s:1:"l";i:2000000;}')
session_write_close() (Line: 250)
Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->save() (Line: 178)
Drupal\Core\Session\SessionManager->save() (Line: 159)
Symfony\Component\HttpFoundation\Session\Session->save() (Line: 61)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191)
Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 686)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Redirects to external URLs are not allowed by default, use \Drupal\Core\Routing\TrustedRedirectResponse for it.The website encountered an unexpected error. Please try again later.
Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: INSERT INTO "cache_config" ("cid", "expire", "created", "tags", "checksum", "data", "serialized") VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6) ON DUPLICATE KEY UPDATE "cid" = VALUES("cid"), "expire" = VALUES("expire"), "created" = VALUES("created"), "tags" = VALUES("tags"), "checksum" = VALUES("checksum"), "data" = VALUES("data"), "serialized" = VALUES("serialized"); Array ( [:db_insert_placeholder_0] => automated_cron.settings [:db_insert_placeholder_1] => -1 [:db_insert_placeholder_2] => 1717722726.832 [:db_insert_placeholder_3] => [:db_insert_placeholder_4] => 0 [:db_insert_placeholder_5] => b:0; [:db_insert_placeholder_6] => 1 ) in Drupal\Core\Cache\DatabaseBackend->doSetMultiple() (line 273 of core/lib/Drupal/Core/Cache/DatabaseBackend.php). 
Drupal\Core\Cache\DatabaseBackend->doSetMultiple(Array) (Line: 205)
Drupal\Core\Cache\DatabaseBackend->setMultiple(Array) (Line: 191)
Drupal\Core\Cache\ChainedFastBackend->setMultiple(Array) (Line: 105)
Drupal\Core\Config\CachedStorage->readMultiple(Array) (Line: 165)
Drupal\Core\Config\ConfigFactory->doLoadMultiple(Array, 1) (Line: 104)
Drupal\Core\Config\ConfigFactory->doGet('automated_cron.settings') (Line: 89)
Drupal\Core\Config\ConfigFactory->get('automated_cron.settings') (Line: 50)
Drupal\automated_cron\EventSubscriber\AutomatedCron->__construct(Object, Object, Object) (Line: 259)
Drupal\Component\DependencyInjection\Container->createService(Array, 'automated_cron.subscriber') (Line: 177)
Drupal\Component\DependencyInjection\Container->get('automated_cron.subscriber') (Line: 105)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.terminate') (Line: 97)
Symfony\Component\HttpKernel\HttpKernel->terminate(Object, Object) (Line: 63)
Drupal\Core\StackMiddleware\StackedHttpKernel->terminate(Object, Object) (Line: 670)
Drupal\Core\DrupalKernel->terminate(Object, Object) (Line: 22)