Hello Aspirant.

Hope you are doing well.

Calm down and please try to open it again maybe there is some technical error from their or at your end so please try again and if still it is not opening than please try contacting the authorities of AIMA{MAT} to the contact number or the email id that they have provided and tell them about the issue that you are facing furthermore they'll what to do next and solve your query in sometime but just be patient.

GOOD LUCK, STAY MOTIVATED AND HOPE THIS HELPS.

Thankyou.