Thanks for asking. I made them show up in red because I do feel that read write errors are significant. There are certainly plenty of time when it is not a problem but it is often an indication of an infection. This does not mean that you should delete these files, even if they are infected they need to be checked and cleaned properly (and they may be harmless anyway).
Try and click on the linked red file names to see if you can examine the contents in my plugin.
Check the permission on the files using a good FTP client like Filezilla.
Let me know if you need more help and want me to check them for you.