Default I'm finally root, but now, I cant install ROMs

I'm finally root(tested in terminal emulator), but now, I cant install ROMs, when I stay in recovery, then I press ALT+S and I get this:

Installing from sdcsard...
Finding update package...
Opening update package...
Verifying update package...
Installing update...
E: Error in backuptool.sh
(Status 65280)
E:Failure at line 5:
run_program PACKAGE: Backuptool.sh backup
Installation aborted.

Press Home+Back to reboot

Can anyone help mee?