Error: UUID is empty

Settings example:
UUID df3eb787-428e-992b-e818-605064f358c4
WS_PATH /ci90rdum
XHTTP_PATH /rclc6r1o

WebSocket config.json:
https://mega-1i4.pages.dev/ci90rdum/?fragment=true&uuid=df3eb787-428e-992b-e818-605064f358c4

XHTTP config.json:
https://mega-1i4.pages.dev/rclc6r1o/?fragment=true&uuid=df3eb787-428e-992b-e818-605064f358c4

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