Error: UUID is empty

Settings example:
UUID f9af6de8-b482-5d94-88dd-1027fb8d9840
WS_PATH /98lok2wt
XHTTP_PATH /kd9i6e8j

WebSocket config.json:
https://mega-1i4.pages.dev/98lok2wt/?fragment=true&uuid=f9af6de8-b482-5d94-88dd-1027fb8d9840

XHTTP config.json:
https://mega-1i4.pages.dev/kd9i6e8j/?fragment=true&uuid=f9af6de8-b482-5d94-88dd-1027fb8d9840

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