"host key not verified“ exception occured by select Cancel in the prompt

"host key not verified“ exception occured by select Cancel in the prompt

Product version: securebidge 11.0.1 trial
Delphi Version:  2010
Other details: 
I downloaded the trial version of the Securebridge control and wanted to use the SSH connection feature. After testing with the Demo, I found that it basically meets my requirements. However, I encountered an issue, as shown in the attached image. When using only the user and password authentication , if I select "OK" in the Messagebox, there is no problem. But if I choose "Cancel" or close theMessagebox directly, I consistently encounter the "Host Key not verified" exception. Although I can suppress this Messagebox, I still prefer to use this prompt. How can I resolve this so that when "Cancel" is selected in the Messagebox, no exception occurs and the SSH client remains in a disconnected state?