It mentions its a disallowed MIME type but when I add
“application/vnd.openxmlformats-officedocument.wordprocessingml.document” to the allowed File types and .docx to allowed file extensions, I still get the error?
I don’t know that this helps, but I performed a test in Omeks 3.1.2 and received the same error message.
.docx was already in my list of allowed file extensions so I just added application/vnd.openxmlformats-officedocument.wordprocessingml.document to the list of allowed file types and I was able to upload the .docx file.