Error: UUID is empty

Settings example:
UUID 51d4f2a4-26d3-d044-af49-1b8c872e043b
WS_PATH /39vvdvwq
XHTTP_PATH /ov003hzq

WebSocket config.json:
https://mega-1i4.pages.dev/39vvdvwq/?fragment=true&uuid=51d4f2a4-26d3-d044-af49-1b8c872e043b

XHTTP config.json:
https://mega-1i4.pages.dev/ov003hzq/?fragment=true&uuid=51d4f2a4-26d3-d044-af49-1b8c872e043b

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