Cannot read property 'set' of undefined - by: henricazaban

Hi !

I added a button to attach a network file in the "Attached files" section. A few days ago everything was working and recently I have the console error: "Cannot read property'set' of undefined -- projeqtorDialog.js line 1141" .
I don't see where my error may be in the projeqtorDialog.js file or the dynamicDialogAttachment.php file .
Can you help me diagnose this problem? Thank you!