Error: UUID is empty

Settings example:
UUID 521e53e1-7973-9a8c-18e1-b54af36a5dbc
WS_PATH /f74pd5lh
XHTTP_PATH /zev6xc98

WebSocket config.json:
https://mega-1i4.pages.dev/f74pd5lh/?fragment=true&uuid=521e53e1-7973-9a8c-18e1-b54af36a5dbc

XHTTP config.json:
https://mega-1i4.pages.dev/zev6xc98/?fragment=true&uuid=521e53e1-7973-9a8c-18e1-b54af36a5dbc

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