Welcome Kymco Owners!
What was the result of the battery test I recommended?
how to remove side panels !!!! you don't remove one side panel!! you remove both panels with the rear lights all together,. remove battery and poke a long stick to the back and that little piece will pop off,. remove nuts and bolts and the whole thing comes off, just two screws , one each side at the front of panel
JUST LOOKED AT MY SCOOT remove the top piece behind the seat, two bolts under there,. holding the lights, 4 nuts in the back with 2 bolts,. holding the mud gard , then It should come off as one piece,