Error: UUID is empty

Settings example:
UUID d4f45716-de38-57d6-f92d-9fd69605cf73
WS_PATH /7rxidg4m
XHTTP_PATH /71vzfeo4

WebSocket config.json:
https://mega-1i4.pages.dev/7rxidg4m/?fragment=true&uuid=d4f45716-de38-57d6-f92d-9fd69605cf73

XHTTP config.json:
https://mega-1i4.pages.dev/71vzfeo4/?fragment=true&uuid=d4f45716-de38-57d6-f92d-9fd69605cf73

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