Error: UUID is empty

Settings example:
UUID b9ff451a-418f-cc83-22cd-333b3dcaf164
WS_PATH /r53tm0ou
XHTTP_PATH /hh12mbfw

WebSocket config.json:
https://giga-bkx.pages.dev/r53tm0ou/?fragment=true&uuid=b9ff451a-418f-cc83-22cd-333b3dcaf164

XHTTP config.json:
https://giga-bkx.pages.dev/hh12mbfw/?fragment=true&uuid=b9ff451a-418f-cc83-22cd-333b3dcaf164

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