I created a blog module ff: this tutorial a month ago and it worked perfectly:
https://www.concrete5.org/documentation/how-tos/editors/setup-a-simp...

However, today, when I'm about to add another blog entry... clicking "Blog Entry Banner Image" to open file manager, upon choosing an image this error appears:

{"error":{"message":"The identifier fID is missing for a query of Concrete\\Core\\File\\File"},"errors":["The identifier fID is missing for a query of Concrete\\Core\\File\\File"]}

I didn't do any file changes from the time it was working before and I was able to add blog entries.


Thanks for your time and help.