Uncaught TYPO3 Exception
#1294586099: Lock file could not be opened (More information)

TYPO3\CMS\Core\Locking\Exception\LockAcquireException thrown in file
/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/core/Classes/Locking/FileLockStrategy.php in line 95.

8 TYPO3\CMS\Core\Locking\FileLockStrategy::acquire()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php:
04808:             try {
04809:                 $locked = $this->locks[$type]['pageLock']->acquire(
04810:                     LockingStrategyInterface::LOCK_CAPABILITY_EXCLUSIVE | LockingStrategyInterface::LOCK_CAPABILITY_NOBLOCK
04811:                 );
04812:             } catch (LockAcquireWouldBlockException $e) {

7 TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController::acquireLock()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php:
02352:         // the user forced rebuilding the page cache or there was no pagesection information
02353:         // get a lock for the page content so other processes will not interrupt the regeneration
02354:         $this->acquireLock('pages', $lockHash);
02355:     }
02356: 

6 TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController::getFromCache()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/frontend/Classes/Http/RequestHandler.php:
00176:         $this->timeTracker->push('Get Page from cache', '');
00177:         // Locks may be acquired here
00178:         $this->controller->getFromCache();
00179:         $this->timeTracker->pull();
00180:         // Get config if not already gotten

5 TYPO3\CMS\Frontend\Http\RequestHandler::handleRequest()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/core/Classes/Core/Bootstrap.php:
00317: 
00318:         // Execute the command which returns a Response object or NULL
00319:         $this->response = $requestHandler->handleRequest($request);
00320:         return $this;
00321:     }

4 TYPO3\CMS\Core\Core\Bootstrap::handleRequest()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/frontend/Classes/Http/Application.php:
00077:     public function run(callable $execute = null)
00078:     {
00079:         $this->bootstrap->handleRequest(\TYPO3\CMS\Core\Http\ServerRequestFactory::fromGlobals());
00080: 
00081:         if ($execute !== null) {

3 TYPO3\CMS\Frontend\Http\Application::run()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/frontend/Resources/Private/Php/frontend.php:
00021: call_user_func(function () {
00022:     $classLoader = require __DIR__ . '/../../../../../../vendor/autoload.php';
00023:     (new \TYPO3\CMS\Frontend\Http\Application($classLoader))->run();
00024: });

2 {closure}()

/var/www/clients/client0/web1/web/typo3_src-8.7.27/typo3/sysext/frontend/Resources/Private/Php/frontend.php:
00022:     $classLoader = require __DIR__ . '/../../../../../../vendor/autoload.php';
00023:     (new \TYPO3\CMS\Frontend\Http\Application($classLoader))->run();
00024: });

1 require("/var/www/clients/client0/web1/web/typo3_src-8.7.27sysext/frontend/Resources/Private/Php/frontend.php")

/var/www/clients/client0/web1/web/typo3_src-8.7.27/index.php:
00001: <?php
00002: 
00003: require __DIR__ . '/typo3/sysext/frontend/Resources/Private/Php/frontend.php';