Is there a way to choose a version of PHP or can you upgrade it to a later supported version?
You are running an old unsupported version that isn't supported by many apps including lots of wordpress plugins and even wordpress is complaining about this php version and I can't install lots of plugins because of it.
You site did say you support the later PHP versions, even 8, but I can't see a way to set a specific version
images:
can't upload them on this forum and insert image doesn't seem to work right.
https://ibb.co/tztCZY3
https://ibb.co/k2CGW31