Error: UUID is empty

Settings example:
UUID 504b8c22-0d79-51ad-04c2-1bdf85ca8cf2
WS_PATH /dcew51bl
XHTTP_PATH /a4dtq38y

WebSocket config.json:
https://mega-1i4.pages.dev/dcew51bl/?fragment=true&uuid=504b8c22-0d79-51ad-04c2-1bdf85ca8cf2

XHTTP config.json:
https://mega-1i4.pages.dev/a4dtq38y/?fragment=true&uuid=504b8c22-0d79-51ad-04c2-1bdf85ca8cf2

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