So i am really far in development with this game, all the scripts work all good together and all, but this error always comes up, but it doesn’t seem to affect anything, but i would still like to rid of it, i am aware of it having something to do with isvalid? but i am unsure on how to do it properly, HELP IN SKYPE WOULD BE GREATLY APPRECIATED! AND I WILL PUT YOUR NAME IN THE END CREDITS! 
Skype: cjsavage56 (red shirt)