Issues with latest AvastOne 23.3.6058

Hello, today I remarked some issues on several PCs with build 23.3.8047.781. When a Smart Scan will be started, after some seconds a failure like < span class=‘color-ok-text g-font–fixednum’>undefined% appears. After some seconds it coninous. In the end I got a suspect screen. which demands for buy a premium version. In fact I have the Familiy Pack and so I pay for AvastOne. So I think this is a misstake to show this page. I presume that a software update made this issues. Because in earlier version this problems does not exist anymore.
Thanks for answering if some one can explain this problems.
My friend which also have the same product has the problem excactly in the same way. See the screenshots in German.