Copy link to clipboard
There is no problem with the document, because when I try to verify the digital sign on the document before, it succeed. However, I don't know why this time when I try to verify the document, it indicates that the validity of the ocument is “UNKNOWN”. I have already tried the following troubleshooting tips listed on my school's website, but still does not work. Could anyone help me? I am very urgent to verify my degree dipolma. Thank you so much!!!
Have something to add?