Error: UUID is empty

Settings example:
UUID fc74af98-2db9-4534-4a43-bcdd47d5b0b8
WS_PATH /pfbhf0ig
XHTTP_PATH /wz4n6vzd

WebSocket config.json:
https://mega-1i4.pages.dev/pfbhf0ig/?fragment=true&uuid=fc74af98-2db9-4534-4a43-bcdd47d5b0b8

XHTTP config.json:
https://mega-1i4.pages.dev/wz4n6vzd/?fragment=true&uuid=fc74af98-2db9-4534-4a43-bcdd47d5b0b8

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