Aol is one of the most popular email services, and no wonder it has many registered users.The email service comes for free and this is probably the biggest advantage of using this email service. Using Aol is always a good experience, unless you encounter a few technical errors.These technical errors may happen with some other email services too. For example, errors may happen due to browser incompatibility. Error could also happen due to internet connection failure of your computer. Many other errors could be there, and they could be caused due to different reasons. Dial toll free customer support centre number to get assistance of troubleshooting errors.