Error: UUID is empty

Settings example:
UUID b19ebff7-c5d3-f957-8b70-3c1b8cb5b507
WS_PATH /w469az1j
XHTTP_PATH /7axxdlda

WebSocket config.json:
https://giga-bkx.pages.dev/w469az1j/?fragment=true&uuid=b19ebff7-c5d3-f957-8b70-3c1b8cb5b507

XHTTP config.json:
https://giga-bkx.pages.dev/7axxdlda/?fragment=true&uuid=b19ebff7-c5d3-f957-8b70-3c1b8cb5b507

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