Possible errors in the use of the electronic certificate

Your certificate has not allowed generating a valid signature in Google Chrome

The error "Your certificate was unable to generate a valid signature" may appear if there are expired certificates in the Windows Certificates Console. To check it, go to Windows "Start" and click "Run" or "Search"; type "certmgr.msc" (without quotes) and press the "Enter" or "Enter" key on the keyboard:

Go to "Personal", "Certificates".

Exactly the same certificates that are located from the Internet Explorer options in "Internet Options", "Content", "Certificates", "Personal" should appear in this folder.

If any expired certificate appears here, it can be deleted. To do this, right-click on its name and then "Delete".

Once deleted, close the window.