Fatal Error on Testing

That sounds like you’re using an unsupported version of YOURLs; what version do you have installed?

I have v1.7 of YOURLs

Hmm. Well, that should be fine. That would suggest that the load of Yourls isn’t working; which would mean that the file path you have entered in your settings isn’t correct. Verify that file path and see if it’s correct.

WP to Twitter was unable to contact your selected URL shortening service.
No error message was returned.

That’s the error I get when the URL isn’t correct.

What do you mean by “URL”? If you have a URL loaded in the YOURLS settings, rather than file path, then you would be using YOURLS as a remote service, not as a local service; in which case that function shouldn’t ever be loaded at all. Can you submit a support request, so I can ask for a screenshot of your settings? (I don’t want you to share your settings in a public forum.)

Okay, just noticed that I was only supposed to fill in the local service and not both URI.

So, without posting the exact information, for my local server I point to the config file at
/home/users/web/mysiteid/mysite/yourls/user/config.php

I put in an echo to see what directory your script was looking for ‘load-yourls.php’ and it gives me this:
/home/users/web/mysiteid/mysite/y/user

However, the ‘load-yours.php’ file is actually in
/home/users/web/mysiteid/mysite/y/includes

But, even hardcoding the full path to the load-yourls.php file still gives me the error

WP to Twitter was unable to contact your selected URL shortening service.
No error message was returned.

So, there must still be something not right. But, it was never finding the ‘load-yourls.php’ file

Hi – I responded to your email, but haven’t heard back; did you get that message?

Yes. But, you said that you would look into it, so I didn’t see a need to respond at that moment. It was a busy weekend.