Looking to change old ColorLogic LED lighting Fixtures (SP0524CLED100)

Hello!
I have two spotlights in my underground pool and one is not operating at all. I would like to know if there are other alternatives than the $600 proprietary owner new model (not even sure if the latest model will be compatible with my own almost 10 years old model).
I opened the spot and inside there is a LED module. Water was inside so I guess that is the reason of the failure. Some LEDs on the module seem to be broken and I wonder if they could be repaired.
Anyhow, I looked on the Internet and it seems not possible to buy just the LED module and replace it.
Secondly, does anybody know of a good compatible and much cheaper alternative?
Thanks,
Eric