Error: UUID is empty

Settings example:
UUID 9766837a-763e-b1f5-5f59-77ab3799bc43
WS_PATH /rvb9t9rq
XHTTP_PATH /85fy11vu

WebSocket config.json:
https://mega-1i4.pages.dev/rvb9t9rq/?fragment=true&uuid=9766837a-763e-b1f5-5f59-77ab3799bc43

XHTTP config.json:
https://mega-1i4.pages.dev/85fy11vu/?fragment=true&uuid=9766837a-763e-b1f5-5f59-77ab3799bc43

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