Guys I got my CAQ approved. I got the email today.Guys sorry for being late on this. I tried the ARRIMA portal alot of times but it didn't help me. I was getting the same error so as I said I sent my documents through courier, they actually received it on 24th July. Yesterday I got an email regarding the confirmation that they received my documents and are looking at it. So hopefully I'll get my CAQ soon now. I highly recommend people to send documents through couriers if they're not able to send it through ARRIMA portal because time is really valuable in this case. I'll update as soon as I get my CAQ.