It means CA isn't patching. Im not sure how to fix it though.
This error means that the game was unable to patch properly. The downloaded data might be corrupted.
-Reboot your computer and try again.
-Your Temporary Internet files might need to be cleared.
F-or Internet Explorer users: Click on Tools, select Internet Options and click on Temporary Internet files (or “Delete…”) from the General tab. Select “Delete Files”. This may take several minutes. Once it’s done, download Combat Arms again.
-For Firefox users: Click on Tools, select “Clear Private Data” and then click on “Clear Private Data Now”. Once it’s done, download Combat Arms again.
(posted by outside website can't post name)
Hope this helps