You can only remove and reinstall All in one Keylogger cause password is the only access to this program. Even the developer who writes this program don't know how to unlock it without password.
If you remember where you have installed it, just find the folder and uninstall it.
If not, find it in "C:\Program Files\Sync Manager\" or try anywhere you think it might be.
Keep a copy of your license, series numbers while you uninstalling this program. License will be asked when you re-install.