What version of DS is this (touch top right icon of three vertical dots, then touch About) ?
Is the phone connected to the web (wifi or sim card) ?
I presume you are touching the three vertical dots, the touching New.
What are you specifying for app name, Native/HTML, etc ?
I don't see any posts with this specific message.
(personally I'd back anything up before deleting) and "reinstall DroidScript"
(RE)install DS on top of your current version, do not uninstall the current version,
because Scoped Storage on Android 10+ deletes all your projects/apps if you uninstall.