Virus reported by 1and1 US on v1.5.3

¡Hi Kovah!

I want help because Virus is reported by 1and1 USA on the latest version (v1.5.3.zip). Please see the below screenshot.

How should I help you with that?
“We detected a malicious file” is not a very informative message for me. Contact their sopport for more information.

The corresponding file is clear: https://www.virustotal.com/#/file/10235057b169d68bfa8804e2490a7d8b7f82f6995319a1380101bd8244bca0dd/detection