Hello, I did solve the above. I was checking the PHP 8.2 config for the oSTicket v.1.18.1 installed on my Synology NAS, which is located on the NAS Web Station / Script Language Settings / PHP / then select the Customized Profile and select Edit, and there I found that the PHP cache was disabled, so I did check it to Enable PHP cache, then restart and now both APCu and Zend Opcache are enabled.
So I just forgot to enable the PHP cache and problem solved!