This error appears when launching adobe acrobat

Hi Алексей,

Thank you for reaching out and sorry for the trouble.

As you receive the error when launching the application, please ensure that you are uisng the application on the compatible version.

Please share the OS version currently installed on your machine. 

You may try the troubleshooting steps suggestion on the following help page: https://helpx.adobe.com/uk/x-productkb/policy-pricing/activation-network-issues.html. 

Check if that helps.

Let us know how it goes.

Thanks,

Meenakshi