I guess you need to give more detail as this is not happening for me.
If you produce endless loops the client normally freezes.
But crashes, have not produced one by addon tests or coding so far this year (only on PTS as the companions were added and one changed the clent language via script -> crash. But this was fixed before last update to live already)
Maybe if you tell us what produces a crash for you in detail we are able to test if this happens for us as well.