Engine keeps crashing when loading at 35%

Here is my hardware

Hardware Overview:

Model Name: iMac

Model Identifier: iMac12,1

Processor Name: Intel Core i5

Processor Speed: 2.5 GHz

Number of Processors: 1

Total Number of Cores: 4

L2 Cache (per Core): 256 KB

L3 Cache: 6 MB

Memory: 8 GB

Boot ROM Version: IM121.0047.B21

SMC Version (system): 1.71f22

Serial Number (system): C02GDL6ZDHJF

Hardware UUID: 0E13FA94-5990-5890-8551-E3A84E9C2F74