A Colleague gets "Account not Approved" message when logging into the Community. How can this be resolved?

A Colleague gets "Account not Approved" message when logging into the Community. How can this be resolved?

Could you please let me know which account we're referring to?
If possible, could you share their details with me in a DM so we can look into this further and work on resolving the issue?
Thank you so much!
Best regards,
Georgiana