RB500 hangs after setting up elf image

i recently upgraded my rb500 to routeros 2.9.14 and now my device will not boot completely. I tried to use the serial console and I get the following message:

RouterBOOT booter 1.4

RouterBoard 532

CPU frequency: 266 MHz
Memory size: 32 MB

Press any key within 1 seconds to enter setup.
loading kernel from nand… OK
setting up elf image… OK
jumping to kernel code
Starting…
Starting services…
cp: /nova/store/{group,user,user/aaa}.{idx,dat}: No such file or directory
Killed
I NEED SOME HELP!!!