Crash when use many add-ons at same time.

I cannot access my realm world for a couple of months now as it crashes when i try and run it with addons, i have tried creating a non realm world with the addons but it still crashes, my friend can get on that realm world just fine but my whole game crashes when i try, if not fixed soon i will be cancelling realms, not paying for something i cannot use! Unless there is a limit for addons in a world?