No more able to acces my outlook account . Error "InvalidLicenseException"

[john john]

I use to access my outlook account without any issue, but today when i try to access it i got this error:-

Also when i check the username (which is also the office 365 admin) inside exchange online i got the following:-

and the user has this license:-

any advice why i can not access my outlook? .. thanks

[#2]

If you look in more detail the license and apps tab of your user, is Exchange Online checked under apps?

[#3]

@Andres GorzelanyThanks for your reply...  the checkbox was not checked, so i check it and save the changes, as follow:-

But still i can not access the email.

Second question, as i mentioned i were able to access the outlook yesterday, so what could cause this checkbox to get unchecked?

Thanks