ComposerAutoloaderInit autoload.php on line 7

Hi @nc_nc !

No, you do not need to install composer. Can you please try to deactivate all other plugins expect RML?

Regards,
Matthew ??

I removed all plugins, and the page loads.
I enable just RML and I get that error.

Hi @nc_nc,

What happens if you install RML from scratch instead from the copied files?

Regards,
Matthew ??

Hi @nc_nc !

I will close this thread due to inactivity. If you have an answer to my previous post, please reopen this thread, so we can discuss further solutions for you.

Regards and have a nice week,
Matthew ??

I am sorry to not have gotten back to you sooner. I am struggling with getting my WP testing environment set up. Here a link to my struggles: https://wordpress.stackexchange.com/questions/375780/clone-wordpress-for-testing-on-localhost-with-fiddler
As so I got WP working the way intended, I will try your last suggestion of a reinstall.

Version 4.9.7 work perfectly. I somehow was still on 4.9.6. (not sure if that had anything to do with it)