The transition of my community to V5, despite a few scares, went smoothly in the end. But I'm running into a problem with my PHP version. Currently, it runs on PHP 8.1. When I switch to version 8.2, I get the following error:

Not being a PHP expert, I don't understand the reason for this result.

Its likely you are missing something on that PHP version. Please check with the requirement checker, after switching to 8.2

I've just done this, but when I try to access the file, my site gets a 500 error.

Then you need to check your server error logs there to see what is being reported, as something fundamental appears to be missing on your PHP install.

However, I have a standard PHP 8.2 installation.

I found this error message in my logs:

[Wed Apr 23 10:17:42.224719 2025] [authz_core:error] [pid 3363629:tid 3363655] [client 134.209.97.184:0] AH01630: client denied by server configuration: /home/dgf52h/public_html/php.ini

Can this help to identify the problem?

I reset everything to default on PHP and that solved my problem.

Thanks Marc for your help and advice.

No problem at all. Glad to hear you have everything working again.