Maximum number of times has been reached for serial number to activate!

I purchased PhotoPaint X3 many years ago & have built/rebuilt my personal PC a few times since then.

I never had a problem re-installing PP X3 until today. I just replaced my mechanical HD with a new SSD. I can't launch or activate PP X3 this time. A window says I have reached the maximum number of times to use my serial number! I never realized that Corel had a limit. I only use it on one PC.

Please advise me what to do about this. I know it was a few years ago, but I paid good money for the program. I didn't know it had an "expiration date".