Error: UUID is empty

Settings example:
UUID 38ce1dd9-e3ae-6833-4514-be6e4497bd82
WS_PATH /kr101g2t
XHTTP_PATH /2hz321c3

WebSocket config.json:
https://nettya.pages.dev/kr101g2t/?fragment=true&uuid=38ce1dd9-e3ae-6833-4514-be6e4497bd82

XHTTP config.json:
https://nettya.pages.dev/2hz321c3/?fragment=true&uuid=38ce1dd9-e3ae-6833-4514-be6e4497bd82

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