FCP x export crashing

Hi God, please help me

Asus X99 Deluxe, 5820k, GTX 770. I had a wonderful Hackintosh Yosemite, used almost 2 years. I'm a freelance Video Editor FCP X is my major software.
Unfortunately I installed Sierra, Boom...fcp x is not working. When I export Apple pro res, its fine but when I try to export H264 its crashes immediately,

Quicktime screen recorder also not working, FCP x, quicktime apps are not quitting the I press cmd+Q every time I have to force quit them.


This is the error,

rocess: Final Cut Pro [487]
Path: /Applications/Final Cut Pro.app/Contents/MacOS/Final Cut Pro
Identifier: com.apple.FinalCut
Version: 10.3.4 (303235)
Build Info: ProEditor-30323005007000000~1
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Final Cut Pro [487]
User ID: 501

Date/Time: 2017-10-21 02:06:46.761 +0530
OS Version: Mac OS X 10.12.1 (16B2657)
Report Version: 12
Anonymous UUID: 27284012-E4D3-8017-6DC1-D01B01109945


Time Awake Since Boot: 170 seconds

System Integrity Protection: enabled

Crashed Thread: 52 Dispatch queue: com.apple.videotoolbox.compressionQueue

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000022329d7
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]
Someone please help me.

Thank you.