There is a free downloadable program called winsyntax.
You can load the view of your site there, and look for errors.
This is NOT a "fix" -- only a way to find the error.
If you want "managed" PHP and MySql then you need a service.
Such services are not free and they do require strict Terms of Service.
With the chance of having this "edited so no one else can see," I will post the sit you might want to view:
Managed PHP + MySql Site ManagementBut, then, some Mod will probably "edit it" for fear of lost income. If not, look at Option 2. -- It's not cheap, It's not free. But it works like a Timex Clock, and you can do your job with conidence.