Updated PHP and now all WYZI options are gone and can't edit and add pages

Hello
I am not a developer and need help resolving this. My wordpress dashboard/menu is missing a lot of items including add/edit pages and all WYZI options and I can’t really do much on the site. My site initially went down after php update and blue host help me fix it and said woocommerce plugin was the issue and that has now been disabled. I reached out to bluehost again now and they told me to change the theme! I am not a developer but even I know if I change the theme, the site will break!
Any help here will be appreciated? Is this theme not compatible with the update?

If it can be of any use, WYZI toolkit is not PHP8 compatible as they seem to have abandoned the theme (maybe you have done that as well, after 4 years, but myself I’m still hoping they resurrect the project)

Did you have any luck updating the theme? I’m looking at doing to same.

Hello, No I have not being able to update the theme o any of its plugins that were necessary to make the theme work. It’s become useless. But the company is still alive so I wonder why they don’t resurrect the project.