Error on project startup

While working, for some reason my project crashed and closed. Since then every time I start it it get an error with this text. Not sure if you can make anything out of it, but there it is.

MachineId:
EpicAccountId:

We apologize for the inconvenience.
Please send this crash report to help improve our software.

Also while running thru the last log I found this part:

[2015.03.01-12.08.20:888][ 0]LogWindows: === Critical error: ===
Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.6\Engine\Source\Runtime\Core\Private\HAL\FileManagerGeneric.cpp] [Line: 613]
Invalid BufferCount=0 while reading …/…/…/…/…/…/Desktop/Unreal Projects/UnrealHanoiTower/Content/foliagestuff>/M_grass_basic.uasset. Pos=301993288, Size=68704, PrecacheSize=2147483647, PrecacheOffset=301993288

I was using the ver.4.6.1 of the engine.
Would be glad for some help.

Ok nevermind. Managed to fix this by removing the file mentioned in the log.