Here are some steps to troubleshoot a stuck trackpad button on your laptop:

1. Check to make sure that the trackpad drivers are up to date.
2. Check the connection of the trackpad.
3. Clear away dust and dirt from the trackpad and the button.
4. Attempt to reset the button with a tool or a pin.
5. Try to loosen the button with a tool.
6. If none of these solutions work, consider replacing the trackpad.