Error: UUID is empty

Settings example:
UUID fb1eb30a-6a20-8c39-f261-25b298e1007c
WS_PATH /87bqavfp
XHTTP_PATH /ci5udw1g

WebSocket config.json:
https://mega-1i4.pages.dev/87bqavfp/?fragment=true&uuid=fb1eb30a-6a20-8c39-f261-25b298e1007c

XHTTP config.json:
https://mega-1i4.pages.dev/ci5udw1g/?fragment=true&uuid=fb1eb30a-6a20-8c39-f261-25b298e1007c

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