Contact Form doen't send email with Server Cache ON!

[crockbg]

Hi,

I have a problem with the standard Contact Form of Prestashop 1.7.8.8: If I enable the Server Cache, the module doesn't send any email and the page refresh without any error message. What I can check to solve this problem?

Here the server detail:

Server: Linux #62~20.04.1-Ubuntu SMP Tue Nov 22 21:24:20 UTC 2022 x86_64
Version softwarer: Apache
Versione MySQL: 8.0.28-0ubuntu0.20.04.3
Motore MySQL: InnoDB
Driver MySQL: DbPDO
Version PHP: 7.4.33
Memory Limit: 512M

Thank you for help

Luca