Phone issues after flashing

[Long Con]

I recently flashed my wife's Diamond with Juicy's ROM (Juicy_4_4_Victor.rar), and I installed TF3D Config, and applied a theme.

She just called me, and told me her phone is acting buggy. She can't access her Call History, her Today screen is unresponsive, and her clock, whenever she turns on the screen, flips around crazily until it lands (and stays) on 12:59.

However, she was able to phone and text me (although there's something wrong with her text message reception as well).

What is the best course of action? Flash the phone again from scratch?