Hi, I am Dave, I will help you with this.
1
Are you getting that error when you try to open an app, or is that appearing when your start your PC on a popup notification or while you are using your PC?
2
Click the link below to download a small free utility that does not require installation.
https://download.sysinternals.com/files/Autorun...
When the file downloads, unzip it.
Run Autoruns64 as Administrator
In the filter box in Autoruns type this: lativa
Please provide a screenshot of that Autoruns window.