Hello Topgir.
Please use English language when reporting issue into the feedback tracker. Also please use proper report form as you have reported this in reforger section while this is a DayZ issue.
As for the issue, it is related to Windows 7. There is a possibility we will not fix this issue as Steam will stop supporting Windows 7 and 8 starting january 2024, making you unable to launch the game on Windows 7 anyway.