Map crashes after 15-20 minutes into the game

[HayleyGilbert24]

Hey all I'm having another little issue. So I'm currently working on a zoo but It will crash about 15 or so minutes in and I don't know why that is happening. I'll have the file attached at the bottom here. Please let me know what is going on. Thank you :) 

Grand Junction Zoo.zoo

[Fern]

Have given it to Jay

[Fern]

From Jay: The crash is most likely because parts of the exhibit fences for the Expedition Africa2 and Expedition Africa exhibits are 1 tile away from the map's edge. When they eventually deteriorate, ZT would crash trying to figure out how to get a maintenance worker to fix them. Exhibit fences are not needed against zoo walls, since zoo walls can act like exhibit fences and they do not deteriorate. The following topic at DG has information on this ZT problem:

http://www.ztcdd.org/DG/index.php?topic=5938.0

[HayleyGilbert24]

9 hours ago, Fern said:

From Jay: The crash is most likely because parts of the exhibit fences for the Expedition Africa2 and Expedition Africa exhibits are 1 tile away from the map's edge. When they eventually deteriorate, ZT would crash trying to figure out how to get a maintenance worker to fix them. Exhibit fences are not needed against zoo walls, since zoo walls can act like exhibit fences and they do not deteriorate. The following topic at DG has information on this ZT problem:

http://www.ztcdd.org/DG/index.php?topic=5938.0

Ahh, that makes sense. Thank you for pointing that out!