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You mean the following mod? https://steamcommunity.com/sharedfiles/filedetails/?id=459893949
It is outdated and I don't think it works with the current game version. And using another mod together with extended timeline is not a good idea, because it is incompatible with most other mods unless they have been made compatible with it.
Disclaimer: I'm not working for Paradox. I'm just trying to help people.
The first one advertises itself to be for game version 1.27 and the second one for 1.10.1. I tried the second one, because it is newer and says that the version of the mod is 1.32, but it is also broken.
In general if a mod crashes the game, it is almost always a bug in the mod or an incompatibility between mods and it is best to contact the mod author about it. If they determine that there is a bug in eu4, they can make a bugreport with the information where exactly the bug is.