i have a samsung galaxy s4 gt-i9500 with cm11 on it. i wanted to flash a new kernel. so i downloaded perseus 19.1 kernel, flashed it, but when i rebooted i got this error: unfortunately the process com.android.phone has stopped. i click ok but it pops up within a quarter of a second. i tried factory data reset, wipe cache partition and wipe dalvik cache but it keeps popping up. what should i do?