[Update error] File cannot be accessed.

[Update error] File cannot be accessed.
The update may be in use by another program.
Restart your computer and try again. If this problem persists, please contact Customer Support at http://us.ncsoft.com/en/support/.
E02024
DP_PEFP_CF_O32_53_54
system\Core.u

You have already answered your own question. "If this problem persists, please contact Customer Support at http://us.ncsoft.com/en/support/."

You should not post these things on the forums, go to support.

Goodluck.

-GoodKnightzzzzzt/MaShiiR0