Unhelpful error

thanks for the reply @maiki.

If I knew how to reproduce the error I wouldn’t need to ask this question lol.

This was a fresh new site with a new theme I’m developing. It’s not the first time I’ve received this error though as I experienced it in the last site I built as well, which turned out to be caused by an incorrectly stipulated file path, which I assume is the case here too.

Can you offer an explanation of what these numbers represent please? It appears to be some kind of pointer to a file, which i’m obviously missing here.

Many thanks,