To fix AOL error there are certain steps by which it will be rectified and before that just check whether the internet connection is properly connected to the server and it is at regular speed. The steps are followed down below:
1) Check operating system whether it is not outdared and if so then it should be upgraded.
2) Check the AOL system setting and correct it, this setting should be known more about it check this out AOL mail on android not working.
3) Check the App and OS of your device whether both of them are updated to the latest version if not then it is to update.