I made a nice map and saved it. The test worked fine, though a little laggy due to the huge amount of objects. I exported it and a lot of files had to be loaded. After it stopped, it came up with a message saying "Feralheart is experiencing severe problems." and shut down. Then I tried to open up the game again, it loaded a white box and then closed again midway through loading.
How can I fix this? Do I need to download FH again?
