Getting Rid Of The “Invalid Java Version” Popup In Pterodactyl Simple config line. nano /var/www/pterodactyl/resources/scripts/components/server/features/JavaVersionModalFeature.tsx Delete all const MATCH_ERRORS and enter whatever for the last line and put a comma, like the below for an example. Save, rebuild panel using ptero's community "build the panel assets" doc. https://pterodactyl.io/community/customization/panel.html