I Went to the game data folder and into Kopernicus and into configs and found something called solar panels, I think it has some strings related to this issue.
When you open the media file into notepad, You see some text and stuff
the normal Solar panel module is disabled because the mod turns it into the Kopernicus version but it's not working, it is for multiple light sources as a visual effect on the panels.
I am not entirely sure of the problem yet and how to fix it.
on my script it says false, but it's not off.
[EDIT:] Found it bingo!!, I removed the solar panels media file from the configs in kopernicus and then the solar panels went deployable again!
KSPFanatic102's post in (Solved) Cannot deploy solar panels was marked as the answer