What is Fatal Error?
It is a type of error that basically forces a computer program or entire system to shut down suddenly.
Why it occurs?
This error usually occurred due to a plugin or theme failure or due to a fact that your plugin or themes need to be updated.
How To Fix This Error?
It can be caused by a variety of unexpected interactions between different programs.
Some ways to fix it are:-
A)update the drivers.
B)unistall any recently installed application.
C)update the software.