So I get this error that pops up every 15 mins and normally I click ignore. FS runs fine normally but it just made my PMDG 747 crash. However I can't tell if its to do with ENB Series that made my pmdg crash. But here is an image of the pop up I am talking about.

You should post the complete error message so we can take a look. For starters, make sure Windows Update is turned on so you can verify your .NET installations are up to date. Cheers, - jahman.

Well I just checked my updates and it says there is an update for framework so you think thats the problem?

Are you using squawk box?

Yes

That may be a common error seen with using SB. Sorry I dont have a solution (part of the reason I dont fly online anymore since that error will pause the flight). Try a few flights without SB and see if you still see the error

Perhaps this is the solution: http://answers.microsoft.com/en-us/windows/forum/windows_other-gaming/whilt-playing-flight-sim-fsx-received-error-net/3f4d8949-09d3-4135-ab66-e09316a34b91 Best regards,Jim