Good day,I currently have P3d v3.4 Professional Plus.I installed Pmdg's 747 with no problems but when I load p3d,select the 747 and AIRAC starts to load the sim crashes.The only error I get is "A Fatal Error Occurred".I tried it multiple times with the same results.As soon as AIRAC starts to load it crashes a few seconds later.All other aircraft works fine,only the 747 has a problem.Any advice would be greatly appreciated.Thank you