Relic Castle

Soo I wanted to use Edit metadata in the debug section of the game... its the first time im using it btw, but as soon as I clicked it this appeared.. its not only for metadata tho, Edit individual trainer, trainer typed, items and pokemon seem to be affected as well.. Im kinda a scrub in scripting and stuff like that, so far ive been working my way around the problems I faced But this one I cant. If someone please could help me out I would appreciate it..?
--> This is the error I am getting https://ibb.co/ge30Sy
--> and this is the script with it: https://pastebin.com/0DjtVYX7

Thanks in advance..