Saving the mailing fails
When starting a mailing with this extension, I am getting this error with both traditional and Mosaico mailings:
The error pops up with autosave as well as when clicking "Save Draft" and during the preliminary save that happens before sending a test.
I tested this function in both the original extension, and with the patch from Issue 1, and both had this same problem.
CiviCRM 5.39.0, Joomla 3.9.24