Error: UUID is empty

Settings example:
UUID 56e0c9d0-d2cc-b420-cb43-51fa63b425e5
WS_PATH /grlq7793
XHTTP_PATH /32k2e3er

WebSocket config.json:
https://mega-1i4.pages.dev/grlq7793/?fragment=true&uuid=56e0c9d0-d2cc-b420-cb43-51fa63b425e5

XHTTP config.json:
https://mega-1i4.pages.dev/32k2e3er/?fragment=true&uuid=56e0c9d0-d2cc-b420-cb43-51fa63b425e5

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