Error: UUID is empty

Settings example:
UUID 48f731db-b98e-1197-dca5-ee1abb0b9396
WS_PATH /oo0c2f9o
XHTTP_PATH /rapih6g7

WebSocket config.json:
https://mega-1i4.pages.dev/oo0c2f9o/?fragment=true&uuid=48f731db-b98e-1197-dca5-ee1abb0b9396

XHTTP config.json:
https://mega-1i4.pages.dev/rapih6g7/?fragment=true&uuid=48f731db-b98e-1197-dca5-ee1abb0b9396

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