Error: UUID is empty

Settings example:
UUID 28bb0a38-556b-6af0-84fa-47da4adbf247
WS_PATH /fn0c7tfd
XHTTP_PATH /l675sdwz

WebSocket config.json:
https://mega-1i4.pages.dev/fn0c7tfd/?fragment=true&uuid=28bb0a38-556b-6af0-84fa-47da4adbf247

XHTTP config.json:
https://mega-1i4.pages.dev/l675sdwz/?fragment=true&uuid=28bb0a38-556b-6af0-84fa-47da4adbf247

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