Error: UUID is empty

Settings example:
UUID 2b4b9b59-7956-2d25-d29e-f8d07f680544
WS_PATH /an76v8u6
XHTTP_PATH /0p2rgt0s

WebSocket config.json:
https://mega-1i4.pages.dev/an76v8u6/?fragment=true&uuid=2b4b9b59-7956-2d25-d29e-f8d07f680544

XHTTP config.json:
https://mega-1i4.pages.dev/0p2rgt0s/?fragment=true&uuid=2b4b9b59-7956-2d25-d29e-f8d07f680544

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