Yes I have enabled the debug mode and got this message
Warning: require_once(/var/domains/geodox-vtech-shop.nl/public_html/var/cache/dev/appParameters.php): failed to open stream: Permission denied in /var/domains/geodox-vtech-shop.nl/public_html/config/bootstrap.php on line 87
Fatal error: require_once(): Failed opening required '/var/domains/geodox-vtech-shop.nl/public_html/var/cache/dev/appParameters.php' (include_path='/var/domains/geodox-vtech-shop.nl/public_html/vendor/pear/pear_exception:/var/domains/geodox-vtech-shop.nl/public_html/vendor/pear/console_getopt:/var/domains/geodox-vtech-shop.nl/public_html/vendor/pear/pear-core-minimal/src:/var/domains/geodox-vtech-shop.nl/public_html/vendor/pear/archive_tar:.:/opt/remi/php72/root/usr/share/pear:/opt/remi/php72/root/usr/share/php:/usr/share/pear:/usr/share/php') in /var/domains/geodox-vtech-shop.nl/public_html/config/bootstrap.php on line 87
Is there anyway to resolve the issue ??