Unhappy [Q] Help SuperSU instantly crashes after installing as system app how do I fix

Hey guys.

Ok so I updated my Samsung Galaxy S4 i9500 to android 4.3. All went well and I rooted it and Installed CWM. Booted up and there was no supersu !? Non the less I manually downloaded it and all and got everything running nice. Being an ass I decided lets try installing it as a system app I had a idea what it was but not really I was more just having an itch in the ass. Well after that it shows up as a green android man with the Eu.chainfire.supersu.main... and when I tap it, it looks like its going in and them just crashes. I can get the report if anyone can help. Because I cant uninstall it anywhere cause its a ''system app'' I still have root but ya.so the big Q is how do I fix it...