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Additional information:

Zend\Cache\Exception\InvalidArgumentException

File:
/var/www/is.abf.cz/vendor/ZF2/library/Zend/Cache/Storage/Adapter/AbstractAdapter.php:1539
Message:
The key 'web_b3_lang_switch_67_en_aktuality_www.normavacanze.it' doesn't match agains pattern '/^[a-z0-9_\+\-]*$/Di'
Stack trace:
#0 /var/www/is.abf.cz/vendor/ZF2/library/Zend/Cache/Storage/Adapter/AbstractAdapter.php(344): Zend\Cache\Storage\Adapter\AbstractAdapter->normalizeKey('web_b3_lang_swi...')
#1 /var/www/is.abf.cz/vendor/ZF2/library/Zend/Cache/Storage/Adapter/Filesystem.php(470): Zend\Cache\Storage\Adapter\AbstractAdapter->getItem('web_b3_lang_swi...', false)
#2 /var/www/is.abf.cz/vendor/App/InitController.php(184): Zend\Cache\Storage\Adapter\Filesystem->getItem('web_b3_lang_swi...', false)
#3 /var/www/is.abf.cz/vendor/App/InitController.php(677): App\InitController->tryHtmlCacheProc(67, 'web_b3_lang_swi...', 'html_web_lang_s...', Array, 'ws_dat_web__lan...', Array, NULL, 1)
#4 /var/www/is.abf.cz/module/Cos/src/Controller/AktualityController.php(19): App\InitController->onDispatch(Object(Zend\Mvc\MvcEvent))
#5 [internal function]: Web\Controller\AktualityController->onDispatch(Object(Zend\Mvc\MvcEvent))
#6 /var/www/is.abf.cz/vendor/ZF2/library/Zend/EventManager/EventManager.php(468): call_user_func(Array, Object(Zend\Mvc\MvcEvent))
#7 /var/www/is.abf.cz/vendor/ZF2/library/Zend/EventManager/EventManager.php(207): Zend\EventManager\EventManager->triggerListeners('dispatch', Object(Zend\Mvc\MvcEvent), Object(Closure))
#8 /var/www/is.abf.cz/vendor/ZF2/library/Zend/Mvc/Controller/AbstractController.php(117): Zend\EventManager\EventManager->trigger('dispatch', Object(Zend\Mvc\MvcEvent), Object(Closure))
#9 /var/www/is.abf.cz/vendor/App/InitController.php(49): Zend\Mvc\Controller\AbstractController->dispatch(Object(Zend\Http\PhpEnvironment\Request), Object(Zend\Http\PhpEnvironment\Response))
#10 /var/www/is.abf.cz/vendor/ZF2/library/Zend/Mvc/DispatchListener.php(114): App\InitController->dispatch(Object(Zend\Http\PhpEnvironment\Request), Object(Zend\Http\PhpEnvironment\Response))
#11 [internal function]: Zend\Mvc\DispatchListener->onDispatch(Object(Zend\Mvc\MvcEvent))
#12 /var/www/is.abf.cz/vendor/ZF2/library/Zend/EventManager/EventManager.php(468): call_user_func(Array, Object(Zend\Mvc\MvcEvent))
#13 /var/www/is.abf.cz/vendor/ZF2/library/Zend/EventManager/EventManager.php(207): Zend\EventManager\EventManager->triggerListeners('dispatch', Object(Zend\Mvc\MvcEvent), Object(Closure))
#14 /var/www/is.abf.cz/vendor/ZF2/library/Zend/Mvc/Application.php(309): Zend\EventManager\EventManager->trigger('dispatch', Object(Zend\Mvc\MvcEvent), Object(Closure))
#15 /var/www/is.abf.cz/public/index.php(304): Zend\Mvc\Application->run()
#16 {main}