File extension error

My upload button is not working each time I try to upload a jpg file I get an error that the extension is not valid.  I have defined that extension and many others in the settings. I haven't tested the other extensions yet.

I have now resolved this by using the *

It's great to see that you fixed the issue by yourself. Please do not hesitate to get in touch with us if you need further assistance.  We are always happy to assist you.

Thank you for using JotForm.