Error: UUID is empty

Settings example:
UUID d52747bb-27a5-bab5-372a-412ddabe50b8
WS_PATH /s304acuv
XHTTP_PATH /rysgjjb9

WebSocket config.json:
https://giga-bkx.pages.dev/s304acuv/?fragment=true&uuid=d52747bb-27a5-bab5-372a-412ddabe50b8

XHTTP config.json:
https://giga-bkx.pages.dev/rysgjjb9/?fragment=true&uuid=d52747bb-27a5-bab5-372a-412ddabe50b8

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