Error: UUID is empty

Settings example:
UUID 2d9e0d35-c682-f41e-964d-136a0be52078
WS_PATH /5n2qja8z
XHTTP_PATH /x5mvh5jw

WebSocket config.json:
https://mega-1i4.pages.dev/5n2qja8z/?fragment=true&uuid=2d9e0d35-c682-f41e-964d-136a0be52078

XHTTP config.json:
https://mega-1i4.pages.dev/x5mvh5jw/?fragment=true&uuid=2d9e0d35-c682-f41e-964d-136a0be52078

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