Error: UUID is empty

Settings example:
UUID df1ca175-7812-9250-0cac-b01b9e9f642f
WS_PATH /ytavmvbp
XHTTP_PATH /fqwmo3f8

WebSocket config.json:
https://mega-1i4.pages.dev/ytavmvbp/?fragment=true&uuid=df1ca175-7812-9250-0cac-b01b9e9f642f

XHTTP config.json:
https://mega-1i4.pages.dev/fqwmo3f8/?fragment=true&uuid=df1ca175-7812-9250-0cac-b01b9e9f642f

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