Error: UUID is empty

Settings example:
UUID 3b99f607-f2b8-b4bb-4c90-2f341a99d1eb
WS_PATH /d6o8qoyw
XHTTP_PATH /lxyisp8m

WebSocket config.json:
https://mega-1i4.pages.dev/d6o8qoyw/?fragment=true&uuid=3b99f607-f2b8-b4bb-4c90-2f341a99d1eb

XHTTP config.json:
https://mega-1i4.pages.dev/lxyisp8m/?fragment=true&uuid=3b99f607-f2b8-b4bb-4c90-2f341a99d1eb

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