If you are seeing this message, it means that you are using an OUTDATED version of SignAgent Pro. You need to upgrade to SignAgent Pro 4.0 to resolve this issue.
See this article for details: Upgrade to SignAgent Pro 4
You will still be able to use the files and scripts normally, as long as this count is under 10.
Once you hit the 10 of 10, you will no longer be able to use the files or scripts at all until you upgrade the files.