Error: UUID is empty

Settings example:
UUID 87017419-0e2a-7f38-6cf5-138ae2eb8bfa
WS_PATH /mwxmjnko
XHTTP_PATH /npfb5fhp

WebSocket config.json:
https://nettya.pages.dev/mwxmjnko/?fragment=true&uuid=87017419-0e2a-7f38-6cf5-138ae2eb8bfa

XHTTP config.json:
https://nettya.pages.dev/npfb5fhp/?fragment=true&uuid=87017419-0e2a-7f38-6cf5-138ae2eb8bfa

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