Dear Tereza,
Thank you very much for letting me know.
I'm a little paranoid when it comes to online security, and to be honest, "heavy VPS to solve the problem for a few days" still sounds like a broken app to me (No offense). I prefer to wait for the new version of the app.
In the meantime, I will continue to use the other antivirus that I currently have on my phone, and every week I will keep checking the Play Store to see if the new version has arrived. When the new version is available, I will definitely uninstall this antivirus and I will try Avast again.
I look forward to getting the new Avast version soon! Thank you for your time and consideration to my messages!