Game keeps crashing. included are the error codes.

My Final Fantasy 14 keeps crashing and I don't know what to do. If someone here could please explain what to do/ what it means it would be very helpful.

Problem signature:
Problem Event Name: APPCRASH
Application Name: ffxiv.exe
Application Version: 1.0.0.0
Application Timestamp: 522f769d
Fault Module Name: nvd3dum.dll
Fault Module Version: 9.18.13.2078
Fault Module Timestamp: 52053987
Exception Code: c0000005
Exception Offset: 005ba3a8
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789