Does the subject want to ask, "Is it okay for the instructor to sign without stamping?" ? You can't. The signature and seal of the instructor is one of the necessary procedures for the guidance and evaluation of the paper, and you can't just sign without seal. The solution is:

1, consult with the tutor first.

2. Secondly, understand the reasons why the signature is not stamped.

Then the administrators of the college ask for help.

4. Finally, please instruct the teacher to stamp.