Error: UUID is empty

Settings example:
UUID fc88e5c3-539c-4f25-3cbe-4205bab3f565
WS_PATH /1r2vxt9k
XHTTP_PATH /m654j1uv

WebSocket config.json:
https://mega-1i4.pages.dev/1r2vxt9k/?fragment=true&uuid=fc88e5c3-539c-4f25-3cbe-4205bab3f565

XHTTP config.json:
https://mega-1i4.pages.dev/m654j1uv/?fragment=true&uuid=fc88e5c3-539c-4f25-3cbe-4205bab3f565

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