Error 137 in AOL Gold usually occurs when the program you are using is outdated. You can go through these steps to check if you are using the latest version of AOL Desktop Gold:
• Launch the AOL Desktop Gold on your computer.
• Sign in with your AOL Gold username and password.
• Click on the top menu bar and click the ‘Help’ option.
• Click on the ‘About AOL’ and look for the ‘Revision 11. x. Xxx’ or higher message.
If the message is visible, then your AOL Desktop Gold program is updated and will continue to get updates automatically. If the message is not visible, you can aol gold download again and reinstall it.

Visit here: Reinstall AOL Desktop Gold | AOL Desktop Gold Software