VirtueMart administrator menu problem

[blueberry_rijeka]

I have installed Virtuemart 2.0.26d and Joomla 2.5.18 (always uses the last update). Everything worked fine until a few days ago and when I signed in I noticed that the Administrator menu of VirtueMart is missing and the rest is just a catalog of products and categories, the rest is deleted. What's the problem? Look at the picture attached.

[attachment cleanup by admin]

[jenkinhill]

Suddenly changed? Did you install some other plugin, module or component at about that time? Did the host change something?

[blueberry_rijeka]

The last few days I did not install anything. I can send login data in the inbox and see if you can correct.