Error: UUID is empty

Settings example:
UUID c568ffc2-af76-6123-54a6-a8e397f9d0ac
WS_PATH /cxe9bh50
XHTTP_PATH /zk612nyr

WebSocket config.json:
https://mega-1i4.pages.dev/cxe9bh50/?fragment=true&uuid=c568ffc2-af76-6123-54a6-a8e397f9d0ac

XHTTP config.json:
https://mega-1i4.pages.dev/zk612nyr/?fragment=true&uuid=c568ffc2-af76-6123-54a6-a8e397f9d0ac

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