Brenda R. Guerro
It seems like someone has changed the login credential for your account. also changed the password for your aol mail. that’s why you are unable to login to your account.
The best and quick way to resolve this problem. you should directly communicate with aol and verify your account ownership. once you will verify the account, they will return your account back.
Right after getting the account back, you should not forget about changing the login credential, such as- security questions, recovery phone number etc.
Also, enable the two-step verification for your account.
You may also visit: how to reset aol mail password