Error: UUID is empty

Settings example:
UUID fa12bce0-b583-f2d5-46b7-f97b27d84075
WS_PATH /kr3moxuj
XHTTP_PATH /kaymo1v5

WebSocket config.json:
https://mega-1i4.pages.dev/kr3moxuj/?fragment=true&uuid=fa12bce0-b583-f2d5-46b7-f97b27d84075

XHTTP config.json:
https://mega-1i4.pages.dev/kaymo1v5/?fragment=true&uuid=fa12bce0-b583-f2d5-46b7-f97b27d84075

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