Customization GUI won't work accordingly? Attempt to Call Upvalue NumberValue

Hello,

A script, that I have created alongside my friend, is quite confusing, as the constant errors flow, and I am unable to fix some, like this one error.

I am currently receiving an error with both the local script and server sided script. The console is saying that I am attempting to call a Upvalue (NumberValue), and I do not understand this.

The script is a customization GUI, that can change the player's face and appearance, however, the face part is currently broken.

I will be providing the place file, for anyone needing the file to work with this situation. also due to the fact that both scripts are enormously large and would be hard to navigate.

Output: https://prnt.sc/p0h204 File: http://www.mediafire.com/file/0u5s1zrzupfa4zw/game_customization.rbxl/file Any help is appreciated, and should there be any questions, please direct them to my Discord @ RookPvPz#8960.

Thanks, RookPvPz