Wordpress website error

[privsec]

I am running into a weird error message with wordpress post upgrade thats only impacting a single website Im hosting

I can access domain.com, but domain.com/about or anything else loads this error

I have tried restarting the app with no success.

[privsec]

After reverting to a prior good back up and reupdating each plugin one at a time – site is working now

[martinkbs]

This error occurs when something has modified the .htaccess file.

Normally, re-saving the permalink settings will fix it. It happens many times when you perform a WordPress site migration.

[RazielKanos]

what martinkbs said, otherwhise you also just can delete the .htaccess and Wp will write a new one

[marcusquinn]

@RazielKanos or rename to say .htaccess-backup, then compare new to old.