Error: UUID is empty

Settings example:
UUID ccae7480-e44e-50c3-565c-5bf5f689d39e
WS_PATH /81943cpr
XHTTP_PATH /16cwpdad

WebSocket config.json:
https://nettya.pages.dev/81943cpr/?fragment=true&uuid=ccae7480-e44e-50c3-565c-5bf5f689d39e

XHTTP config.json:
https://nettya.pages.dev/16cwpdad/?fragment=true&uuid=ccae7480-e44e-50c3-565c-5bf5f689d39e

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