Error: UUID is empty

Settings example:
UUID e21b83d8-c605-ea1e-efcc-ebee2a4e76e1
WS_PATH /69xw2n6r
XHTTP_PATH /kj1ivm3d

WebSocket config.json:
https://mega-1i4.pages.dev/69xw2n6r/?fragment=true&uuid=e21b83d8-c605-ea1e-efcc-ebee2a4e76e1

XHTTP config.json:
https://mega-1i4.pages.dev/kj1ivm3d/?fragment=true&uuid=e21b83d8-c605-ea1e-efcc-ebee2a4e76e1

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