Got error ‘PHP message: PHP Warning: Undefined array key “frontend” in /home/977869.cloudwaysapps.com/syqfgmwgpb/public_html/vendor/magento/framework/App/Cache/Frontend/Pool.php Screenshot: Solution: ‘cache’ => [ ‘frontend’ => [ ‘default’ => [ ‘id_prefix’ => ’91c_’ ], ‘page_cache’ => [ ‘id_prefix’ => ’91c_’ ] ], ‘allow_parallel_generation’ => false ],