Error: UUID is empty

Settings example:
UUID f11321f3-fda2-a3bb-8df3-d6ac72148548
WS_PATH /l57xcgpk
XHTTP_PATH /qnq0chhn

WebSocket config.json:
https://mega-1i4.pages.dev/l57xcgpk/?fragment=true&uuid=f11321f3-fda2-a3bb-8df3-d6ac72148548

XHTTP config.json:
https://mega-1i4.pages.dev/qnq0chhn/?fragment=true&uuid=f11321f3-fda2-a3bb-8df3-d6ac72148548

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