Lak Needs Transport CD Assistance :-

I have two different transports (a back-up Conrad Johnson) and a (CEC TL 51 00Z in a secondary system) that have started to skip a second or two of music, multiple times per (clean or new) CD I play.
Can some one tell me what’s happening and why?
Do I need to send it back to the manufacturer for repair?
What do you suggest I do?
How expensive will it be?
Sincere thanks for anythought upon the problem.
Have a safe and wonderful holiday!