Error: UUID is empty

Settings example:
UUID b4cb54f2-f656-99d1-66de-72e6992ebe41
WS_PATH /k7nr8hjs
XHTTP_PATH /x2v1emop

WebSocket config.json:
https://mega-1i4.pages.dev/k7nr8hjs/?fragment=true&uuid=b4cb54f2-f656-99d1-66de-72e6992ebe41

XHTTP config.json:
https://mega-1i4.pages.dev/x2v1emop/?fragment=true&uuid=b4cb54f2-f656-99d1-66de-72e6992ebe41

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