FormatException: Index (zero-based) must be greater than or equal to zero and less than the size of the argument list.

I get the following error in the console; FormatException: Index (zero-based) must be greater than or equal to zero and less than the size of the argument list. also after any wallpaper creation, build skins or repair the process ends but the cancel button remains stuck

Hey, can you reset the config and the lang file and reload the plugin. 

Remove oxide/config/TCUpgrades 
also remove oxide/lang/en/TCUpgrades

I didn't expect you to come back early because of the late feedback from other plugin developers. so sorry for the late feedback. i did what you said and it works fine now. thanks.