Logo problem after osclass update

Hello! After osclass update the site logo is no longer visible:

https://999-ru.com/

I use Sigma Osclass Theme 1.6.0 .

I tried to add it again, but the result is the same. How to fix this?

Best regards, Alexander

Until I solved this problem, I went back to the previous version of osclass.

Hi! You marked my question as solved, but it is not. It is not about the Sigma theme. I installed new test site 8.3.0  https://999-ru.com/osclasstest/ and noticed that none of the new free  themes install the logo.

Hello
There is no new free theme as far as I know.
In order to resolve issue you must rewrite sigma files with latest.
Standard upgrade does not touch active theme.
Legacy themes are not monitored for compatibility purpose.

Osclass 8.3.0 was by default with the Sigma 1.6.0 theme. The Market also has the Sigma 1.6.0 theme. How can I update Theme in this case? The Bender theme has the same problem, the logo is not installed. Other free themes have the same problem.

Theme delivered in Osclass installation is latest.

If all themes in osclass are up to date, why can't I install logo in the latest version of the theme?