My game started crashing recently - I haven't changed anything with Skyrim or my computer. Certain sounds don't play (footsteps, opending chests etc) and then it crashes

I'm running the following mods

USSEP

imperial outfits

ivarstead

cutting room floor

hothtroopers armour

apocalypse magic

player home map markers

barenziah map markers

phenderix's magic evolved

1nivwiccloaks

I think that if I turn them all off the game runs well, I'm currently working through each one but this svcks because last week they all worked together nicely. Anyone have an idea?

Might be an incompatibility with both Apocalypse and Phenderix Magic Evolved-two separate magic systems.