Missconfiguration of time zone in production enviroment. warning in a POPUP message

I want to add this report to avoid anyone to waste hours trying to solve the following problem I had: In production enviroment, whenever a Form is loaded, an annoying POPUP appears with the following message:

“la función de carga requiere la extensión zona horaria habilitada en el php”

I have solved the problem configuring the timezone in the production enviroment app.

https://www.YOUR_DOMAIN.com/_lib/prod/lib/php/nm_ini_manager2.php

There is an option to configure the right time zone. When I have done it, the problem was solved and the POPUP hasnt launched anymore.