Can not access a certain tab on the GoDocs system

Our system only allows one person to be in a certain record at a time. When you try to access a certain tab that is in use by said person, the system will let you know who is accessing said tab. Do note that if that person does not leave the record through a way that releases it for another person to use it, then the record will appear to be locked. However, please note that the system will self-release after about 20 minutes of inactivity.