Error: UUID is empty

Settings example:
UUID f47aad7e-1280-e116-b5a9-0d9f473cf4e4
WS_PATH /4r042a5a
XHTTP_PATH /e1hoa8mm

WebSocket config.json:
https://mega-1i4.pages.dev/4r042a5a/?fragment=true&uuid=f47aad7e-1280-e116-b5a9-0d9f473cf4e4

XHTTP config.json:
https://mega-1i4.pages.dev/e1hoa8mm/?fragment=true&uuid=f47aad7e-1280-e116-b5a9-0d9f473cf4e4

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