Safari & Mail crashes after jailbreak iOS7 [FIX]

Steps:

1. Uninstall all Appsync Cydia Apps even iOS 7.x Appsync

2. Reboot your iDevice

3. Delete these 2 files : "com.apple.mobile.installation.plist" , "com.apple.LaunchServices-045.csstore" where are located in var/mobile/library/caches 

P.S: If "com.apple.LaunchServices-045.csstore" file is not available, it's OK!

4. Reboot (It is normal if some of your apps/folders are not available after the reboot, they will come back after steps)

5. Install iOS 7.x Appsync

6. Reboot

7. FINISH! Your apps should come back now!