Error: UUID is empty

Settings example:
UUID fe0df421-1f10-e076-cf09-351cfdfd1af6
WS_PATH /y88c8bk3
XHTTP_PATH /aw05wfx6

WebSocket config.json:
https://mega-1i4.pages.dev/y88c8bk3/?fragment=true&uuid=fe0df421-1f10-e076-cf09-351cfdfd1af6

XHTTP config.json:
https://mega-1i4.pages.dev/aw05wfx6/?fragment=true&uuid=fe0df421-1f10-e076-cf09-351cfdfd1af6

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