Error: UUID is empty

Settings example:
UUID a51e883d-f23e-f88f-d5a6-acda3bc97a76
WS_PATH /ld78fo0z
XHTTP_PATH /odqc62lf

WebSocket config.json:
https://mega-1i4.pages.dev/ld78fo0z/?fragment=true&uuid=a51e883d-f23e-f88f-d5a6-acda3bc97a76

XHTTP config.json:
https://mega-1i4.pages.dev/odqc62lf/?fragment=true&uuid=a51e883d-f23e-f88f-d5a6-acda3bc97a76

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