Config changes not saving, magento error, server error, hosting tech support couldn't help
Hello everyone. I have recently moved my magento installtion to a VPS. After doing this, I am having issues. I tried solving through google to no avail. I then worked with tech support (of my hosting provider) and they could not figure it out either.
1) Magento will not save config changes. When I click save, I am brought back to dashboard
2) Magento will not save new users. When I click save, I am brought back to dashboard
3) Magento will not save new products. It gives me an error message: "Invalid Form Key. Please refresh the page." Which does nothing (of course).
4) Server error says: AH01797: client denied by server configuration: /home/xxxxxxxxxx/public_html/app/etc/local.xml
We have tried many thing, but nothing is working. Any ideas?