Game crashes when i add a bot.

When i try to test out my map with bots, the game freezes for a few seconds and then crashes with one of those, send or don't send error reports. The game doesn't crash until the freeze time at the start of the round is over so it seems to only happen once the bot tries to move. This only happens with bots in the map and it never happens on the default maps in the game so its only my map that doing this . Does anyone know how to fix this?

Thanks in advance.