Income tax return of unregistered trust

Dear All

Filed Income Tax Return ITR 7 of unregistered Trust and claim exemption u/s 11, notice received u/s 139(9) for core defective return. what should we do?

there is no business and only income from donation from general public as well as community

Shall we can file return under AOP and ITR 5 under revised return ?

How to show income from Donation and corresponding expenditure.

is it necessary to fill business name. please guide.

Thanks