Error: UUID is empty

Settings example:
UUID b7872f50-e5be-5e65-8035-35ba24d0dc85
WS_PATH /89reqztz
XHTTP_PATH /vcba4481

WebSocket config.json:
https://mega-1i4.pages.dev/89reqztz/?fragment=true&uuid=b7872f50-e5be-5e65-8035-35ba24d0dc85

XHTTP config.json:
https://mega-1i4.pages.dev/vcba4481/?fragment=true&uuid=b7872f50-e5be-5e65-8035-35ba24d0dc85

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