Cannot making new skin with modded cars (Fatal Error : System.Access.Violation)

[Rpsdi]

Hello, I've been trying to acquire new paint or skins on modded cars, but I keep encountering this popup error. I've already attempted to reinstall Content Manager (CM) and AC too four times, but unfortunately, that didn't resolve the issue. Due to this problem, I'm unable to create any new generated skins in the CM workshop. Any assistance in fixing this would be greatly appreciated. Thank you.
Note : the error didn't come up when i created new skins on kunos cars / original ac cars

Log files:
Main_Log_240225_113325.log

Main_Log(txtver).txt

And Big thanks for the time and the respond.