"KUVRT is open in another tab"
Only one tab can hold your chats at a time. Tap "Use it here" to move KUVRT to this tab, or close the other tab or window.
"KUVRT is still open in another tab or window. Close it to continue here." has no button: close the other tab or window.
Still stuck?
Email contact@kaiserbyte.com and say which topic you read.