Cant Open Admin Pages

Reloading the admin side after deleting the cache and now cant access the admin pages, just get tis error:

Fatal error: Uncaught --> Smarty: unable to write file var/cache/templates/backend/wrt594a54d0125913_57950644 <-- thrown in /app/lib/vendor/smarty/smarty/libs/sysplugins/smarty_internal_write_file.php on line 46

The var/cache/templates/backend/ folder is empty and has the correct perm's
Anyone have ideas how to fix?

Ok I worked it out.

For some reason the /var/cache/backend folder (and a few others) were created with owner:group of root:root

I have no idea how this could happen, since httpd services are owned by root.

Fixed folder ownerships and it seems to work now....