Error: UUID is empty

Settings example:
UUID 6b4ad9b7-e172-86dc-d796-17355850b907
WS_PATH /5r4tbqc8
XHTTP_PATH /7ph13pjk

WebSocket config.json:
https://mega-1i4.pages.dev/5r4tbqc8/?fragment=true&uuid=6b4ad9b7-e172-86dc-d796-17355850b907

XHTTP config.json:
https://mega-1i4.pages.dev/7ph13pjk/?fragment=true&uuid=6b4ad9b7-e172-86dc-d796-17355850b907

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