I’m having the same issues as Christine across all forms, lists and libraries. Image 1 shows the error while the file path name for the library and DFFS folder are correct (/sites/gwjayme/Sandy/SPJS/DFFS/js/DFFS_frontend_min.js). Receiving similar Console errors on all three forms in image 2.
Document Mode 8(Default)
User agent String IE 11 (Default)
OS: Windows 10