MT limit unrealisticaly reached

In March it shows that I used up over 7 million characters ... 2308 language pairs. I am "just one" freelancer so immpossible. And I updated to the latest version and now every time I start Studio I get an error message "Error "Sdl.Desktop.Platform.CommandBars.IActionService could not be started" when starting Trados Studio " and have to rename the Plugins folder over and over again. I also tried Repair it didi not work, I recovered my Laptop to the 14th May and that did not help either .... Please, help