System.IO.fileNotFoundException in SMA.SunnyExp

I have now deleted AVG from my pc and the problem has disappeared.

I think AVG is causing me to get the error message; 
System.IO.fileNotFoundException in SMA.SunnyExplorer.Configurator.InitializeDataModel()

How can I fix it?

The message relates to some application like "Sunny Explorer", but we aren't sure about it.
We can confirm that this message isn't appearing due to AVG.
May I know the reason for suspecting AVG regarding this message?

Hello William,

We can confirm this, after checking the (screenshot) of the error.
Please provide it here by clicking on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.

Hello William,

We can confirm this, after checking the (screenshot) of the error.
Please provide it here by clicking on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.