Messenger in Visual Studio

After i restart laptop, visual studio don't turn off, then i open it again, It shows many lines on tabs. "Feature 'Asset synchronization' is currently unavailable due to an internal error. Show Stack Trace"

Do these things:

• Press Alt + Ctrl + Del
• Select Task Manager.
• Click on "More details" on the left side below of the Task Manager.
• Then, click the Start button.
• Find Visual Studio in this list, then click on it.
• Click "Disable" after right-clicking on Visual Studio.

Then close the window, and your problem will be solved.