Default acore and htccontacts process crash

I have been using Jaggyrom 4.1 for last few months on my htc explorer
Few days earlier it started dispaying error android.process.acore and android.process.htccontacts stopped unexpectedely

I searched this forum and google for the resolution of this error but nothing worked

Finally I flashed the latest jaggyrom 5 after wiping everything i.e /facotry reset wipe all, /system, /data, /cache

After setting up all after first boot the problem again starts same error

Your help required