Error: UUID is empty

Settings example:
UUID d91f8516-9375-dd75-3e0f-2ab20ab63b38
WS_PATH /ryydt861
XHTTP_PATH /3f3p4s0e

WebSocket config.json:
https://mega-1i4.pages.dev/ryydt861/?fragment=true&uuid=d91f8516-9375-dd75-3e0f-2ab20ab63b38

XHTTP config.json:
https://mega-1i4.pages.dev/3f3p4s0e/?fragment=true&uuid=d91f8516-9375-dd75-3e0f-2ab20ab63b38

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