What are quick ways to solve QuickBooks error 3371?

I am making the only usage all the functions of QuickBooks for managing all the accounting tasks within the right ways. I’m working on QuickBooks from the last two years, so I even have good experience of using QuickBooks for maintaining the regular financial tasks within the right ways. When my QuickBooks couldn't load the license data, I’m experiencing QuickBooks Error 3371. This error code displays on the screen, so I’m facing this error code. I’m trying to hunt out out the most reasons of this error code, but don’t get them. So, I’m asking from someone to share the fast ways to unravel this error code as soon as possible.
QuickBooks Error 3371