Error: UUID is empty

Settings example:
UUID 3c2e9527-d333-3204-4b8e-d140f0fd9abf
WS_PATH /0xkubgj2
XHTTP_PATH /3dkxaott

WebSocket config.json:
https://mega-1i4.pages.dev/0xkubgj2/?fragment=true&uuid=3c2e9527-d333-3204-4b8e-d140f0fd9abf

XHTTP config.json:
https://mega-1i4.pages.dev/3dkxaott/?fragment=true&uuid=3c2e9527-d333-3204-4b8e-d140f0fd9abf

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