Instagram not logging in

Hello,

My account got hacked so I changed the password immediately by using the “forget password” to reset the password through mt email account. Now after successfully changing the password, after entering the correct credentials and pressing the login button, it just freezes and then starts the login process all over again. I tried logging in from my cellphone and laptop and other devices but still the same is happening again and again, I do have access to the mob Num as well as the email, and I can change the password successfully but still it doesn’t login giving me error of sorry we can’t log you in
Please advise.