Prestashop 9: compatibility problems

[jotaka]

Hello,
Context:
Local server, Apache 2.4
PHP 8.3.9 (with opcache extension enabled, runtime limits around 300 seconds, and memory limits set quite high)

I tried to install PS9 on my local server. During installation, an error appears because it cannot rename index.php.tmp, but this is fixed manually and the process continues. The installation finishes after an eternity (is this normal?).

The store is ready, but frontend access is very slow, although it works.

Backend access: the first time it works (very slowly), but then it never works again. The system hangs waiting and eventually reaches the maximum execution time.

I check logs and the console and I see compatibility issues due to the use of deprecated functions both in backend and frontend (even related to jQuery).

For example (among many others):

pgsql

CopiarEditar

[21-Jul-2025 02:47:09 Europe/Madrid] 2025-07-21T02:47:09+02:00 [info] User Deprecated: Method "Symfony\Component\HttpKernel\Bundle\Bundle::build()" might add "void" as a native return type declaration in the future. Do the same in child class "Doctrine\Bundle\DoctrineBundle\DoctrineBundle" now to avoid errors or add an explicit @return annotation to suppress this message. jQuery.fn.delegate() is deprecated

In server error log I get
VirtualProtect() failed [87] El parámetro no es correcto   

Edited July 21 by jotaka
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