I have v11, v12, v13, v14 on my computer. Zero issues.
Some suggestions:
Delete unnecessary files from your league files. There are several threads on this. File bloat can contribute to crashes
Do a complete HDD defrag. OTTP fragments files quickly. I defrag 2-3 times a week. This utility is very good.
MyDefrag v4.3.1
Check that all drivers and updates are current.
Check that the HDD with OOTP on it is not filled up. I'm under the impression that above 75% fill the performance can degrade.