This morning, when I tried to execute again a script on one of my databases, I found out that the script generated a bunch of errors. Basically, it was not able to do anything. So, I quit SSMS and entered in it again. I connected to the server and was able to see my database and its tables from the Object Explorer. However, I tried to run the script again and nothing was working. So, I got into the same situation again. And, after that, I cannot even click on Properties from the database. I get a "Cannot show requested dialog (SqlMgmt)". I cannot expand the Tables node. It shows "Tables (expanding...)" and after a few seconds, I get "Failed to retrieve data for this request. (Microsoft. SQLServer.SmoEnum)". What is going on?