I'm not sure if this is the right forum to ask on, but I have a website that uses PHP which is giving problems to one person and possibly more. She has tried lots of different computers with different routers and browsers and gets internal server 500 error. The home page loads fine, but when she clicks on a link that sends a query to the database and brings back a page she gets the internal server error.
My web host is not being helpful because I can't see the error log, only they can and they aren't respecting that the person has tried different computers and telling me to tell her to clear cache and cookies and flush dns.
I have given up on technical support, but now I don't know what to do to try and solve this problem, any ideas?