PHP Fatal error: Uncaught Symfony\Component\DependencyInjection\Exception\InvalidArgumentException

[mampsupportmod]

After a PHPBB update, couldn't access the ACP. I had to manually clear the cache/ folders inside the root directory.

Code: Select all

PHP Fatal error:  Uncaught Symfony\Component\DependencyInjection\Exception\InvalidArgumentException: The parameter "debug.error_handler" must be defined. in cache/production/container_dbdbe80dc7030ae9bd39ee30cca82130.php:4970
Stack trace:
#0 /common.php(134): phpbb_cache_container->getParameter('debug.error_han...')
#1 adm/index.php(23): require('///Sit...')
#2 {main}
  thrown in ache/production/container_dbdbe80dc7030ae9bd39ee30cca82130.php on line 4970