You could try moving the entire game folder to a users folder like downloads so it doesn't need any special permissions, though I don't think that's the problem since it looks like it's creating an access violation trying to read from a 64 bit memory adress.
I can't say anything about this beyond that since searching for this problem doesn't really return anything of substance, and KoboldCPP is third-party software which I didn't develop.
"full path to the model.gguf file here with one set of quotation marks" should be replaced with "G:\Silverpine Alpha 0.9.1 Experimental\Silverpine_Data\StreamingAssets\KoboldCPP\model.gguf" here, assuming you didn't move the folder.