Error: UUID is empty

Settings example:
UUID 0f042f98-de3d-547f-e48a-155e0cfb59b6
WS_PATH /l6626qrk
XHTTP_PATH /ruyepj72

WebSocket config.json:
https://giga-bkx.pages.dev/l6626qrk/?fragment=true&uuid=0f042f98-de3d-547f-e48a-155e0cfb59b6

XHTTP config.json:
https://giga-bkx.pages.dev/ruyepj72/?fragment=true&uuid=0f042f98-de3d-547f-e48a-155e0cfb59b6

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