AM3352: AM3352 with BBB platform, boost issue

hi Sir

I follow the BBB platform (use AD3352 ) to do the HMI ,  need reboost many times  ,then the system work correct 

but loss power about one hour, re boot the system , can't  work correct,did you have any advise?

SOC(AM3352ZCZ) + PMIC(TPS65217C) + DDR3L

thanks