Warning: PHP Startup: failed to open stream: Permission denied in /config/bootstrap.php on line 87

Fatal error: PHP Startup: Failed opening required '//var/cache/dev/appParameters.php' (include_path='/vendor/pear/pear_exception:/vendor/pear/console_getopt:/vendor/pear/pear-core-minimal/src:/vendor/pear/archive_tar:.:/:/usr/local/php72/lib/pear') in /config/bootstrap.php on line 87