joecap1 on "[Plugin: W3 Total Cache] Googlebots unable to crawl (high percentage of crawls result in error)"

I never had this problem....all of a sudden I see ranges from 40-70% of googlebot crawls resulting in errors. I deactivated W3TC and the errors went down to zero.....Any idea why this could be happening? I have been using W3TC for 2 years and never had a problem with googlebot errors.

http://wordpress.org/extend/plugins/w3-total-cache/