Error: UUID is empty

Settings example:
UUID 37853525-2156-ea71-1742-dc9c7b9482d9
WS_PATH /9hwe0va4
XHTTP_PATH /4u6czhuh

WebSocket config.json:
https://mega-1i4.pages.dev/9hwe0va4/?fragment=true&uuid=37853525-2156-ea71-1742-dc9c7b9482d9

XHTTP config.json:
https://mega-1i4.pages.dev/4u6czhuh/?fragment=true&uuid=37853525-2156-ea71-1742-dc9c7b9482d9

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