I am searching for this error but it seems that I am the only one that have this error.
After reboot my time and date are wrong. It goes to 01.01.2013 and time 1:00. If i am on StockRom this Error is gone. After I flash recovery and a Custom Rom the time and date is wrong.
Now I am on EchoeRom v9 and philz_touch_6.13.0-hltexx.
On my LG G2 I had the same Error but some has fixed it.