WP stopped updating plugins

Hi!
I have a problem with updating plugins. I can see that there are plugins which I need to update, I go to wp updates and there is a list of plugins i need to update, I choose them all (or not, it doesn’t make a difference)and click update. WP writes that all are updated successfully and I can return to plugin’s page or can go to updates page (doesn’t matter what I choose here) and I see that there are plugins that need to be updated. It started with one, but now there already 6 of them.
Please, I have no idea what I can do to solve this problem…