I've never seen that error box before, but I think that may be due to memory overload. Your google chrome can take up some of your memory when it is running and can crash when it happens. Just try these options:
1- close all the programs and then run Feralheart, stay away from those maps that have so many people and lag like Fluorite Plains and Bonfire Island for a day or 2, it might work then.
2- refresh your computer and then try again
3- or, you have to redownload the game if it doesn't stop
I am not completely sure about this, but it'll be great to help in some way?
