Hello! We need you to provide us with more context so we can help you.
Which version of the plugin are you using? Are you using it in a clean project or in an existing one? Could you provide the full error log from the console (F12)?
We recommend contacting us through the support page so we can analyze your case and help you more accurately.
Thank you!
Latest and I use https://chigoox.itch.io/ed5-advanced-chests-plugin-rmmzmv which seems doesn't play nice at all.