In accordance with our EOL policy:
Please see it here:
https://www.snort.org/eol
Snort version 2.9.1.2's ruleset from the VRT will be EOL'ed as of October 17th. This was first announced back in July here:
http://blog.snort.org/2012/07/2921-eol-notice.html.
Please be sure and upgrade to the latest version of Snort (2.9.3.1) available here:
https://www.snort.org/downloads