Hi,
I wanted switch to PHP 8.0 on my virtual server, created new subdomain and wanted to use with PHP 8 version, i've copied .ovhconfig file with
data app.engine=php
app.engine.version=8.0
http.firewall=none
environment=production
container.image=stable64
sadly get error on page "Not Implemented GET not supported for current URL. Additionally, a 501 Not Implemented error was encountered while trying to use an ErrorDocument to handle the request." When removed .ovhconfig file server working fine, but with old PHP 5.6.4(default version in panel) - i can't switch to new PHP version. Subdomain not contains any php files, it is showing even with empty index.html file and phpinfo.php file which calls only phpinfo() function :(
Any help, support is a joke. They redirect me to their page and i do exactly what is in this tutorial and still not working.
2471 
03.07.2025 12:11
Hello,
It may be due to another .ovhconfig which requests container.image=stable (meaning 32bit platform)
You may not use the conflicting options stable and stable64 within a single hosting for different webroots.
Thanks for answer, indeed - i'm using older 5.3 version for www.mywebsite.com and want use new for subdomain.mywebsite.com, but looks like it's not this. I've renamed .ovhconfig_old on www and subdomain still can't work with 8.0 :( also renamed .htacces to old to testing, still nothing.
I discovered also this is working fine
data app.engine=php
app.engine.version=7.0
http.firewall=none
environment=production
container.image=stable64
and this NOT
data app.engine=php
app.engine.version=7.1 or any newer
http.firewall=none
environment=production
container.image=stable64
The worse part is OVH support, which say it's ok and they will not help me.
Nope.
Please use "stable" up to PHP 7.3, and "stable64" from PHP 7.4 onwards.
It looks like i can't mix 64 bit and 32 bit versions on one server :(
I said: "You may not use the conflicting options stable and stable64 within a single hosting for different webroots."
You said: "It looks like i can't mix 64 bit and 32 bit versions on one server :( "
We both agree :(, said differently.