Hi
With the mods you have - check whether they have been updated via whichever websites you got them from. Then create a temporary mod folder elsewhere and then move your mods to it. Then move your mods over in small groups - to the original mod folder. (If some mods work together or are linked together - move them together). Then load the game. If it loads and works - then the mods in that group are ok. So then come out of the game and move more mods over to the original folder and load the game again. Keep going until the game fails - keeping note of the last group of mods you moved over. The fail will be caused by a mod in the last group you moved over. So then come out of the game. And - in the last group of mods - move them over one by one - loading the game each time. Then you will find out which mod - is causing the fail. It is beyond time consuming - but, eventually you will find out which mod is causing this error.
I hope this helps. Good luck fellow simmer.