Error: UUID is empty

Settings example:
UUID fcbbbd95-80e0-045e-d98b-805aa893dc55
WS_PATH /sigxm4wr
XHTTP_PATH /gqapa3a5

WebSocket config.json:
https://mega-1i4.pages.dev/sigxm4wr/?fragment=true&uuid=fcbbbd95-80e0-045e-d98b-805aa893dc55

XHTTP config.json:
https://mega-1i4.pages.dev/gqapa3a5/?fragment=true&uuid=fcbbbd95-80e0-045e-d98b-805aa893dc55

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