Error: UUID is empty

Settings example:
UUID 83a4048c-ccbd-a209-9868-379a02f0abe3
WS_PATH /52urlcth
XHTTP_PATH /f8wcdlbm

WebSocket config.json:
https://mega-1i4.pages.dev/52urlcth/?fragment=true&uuid=83a4048c-ccbd-a209-9868-379a02f0abe3

XHTTP config.json:
https://mega-1i4.pages.dev/f8wcdlbm/?fragment=true&uuid=83a4048c-ccbd-a209-9868-379a02f0abe3

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