Even if you have never received a demerit point, your PDVL requires you to complete a refresher course from the date of initial licence issuance. If you miss this window, your licence becomes "invalid for hire." The only way to "fix" this is to take the refresher course immediately.
If you are searching for a "fix," you might be facing one of these common problems: refresher course for pdvl fix
The course was evaluated through:
Thus, a refresher course is not optional—it is the recognized by the LTA. Even if you have never received a demerit