Barkatullah University — Rejected application for graduation degree

I completed my graduation in may 2019 and applied for degree on 18 dec 2020 and paid the fee also i.e. Rs. 325. But my marksheet was not verified from autonomous college and that application got rejected.Now i got my marksheet verifed from college but when i opend counterbase rejected application it is asking to attach internship certificate along with affidavit. I want to know what kind of affidavit should i attach and what to do if i don't have my internship cerificate.