Hi, I have been using WP-Slimstat on all websites I do for over a year now with NO issues
Today I was working on a test install of my new personal website and started having an issue when enabling woocomerce. I could access the wp-admin but the front end of the site would just give "Server Error" logs would show it as Server 500 (not helpful I know)
I tracked it down to be a conflict between Slimstats and woo.
Go to the Wp-slimstat -> Settings -> General
Set Java script mode to YES
Site is now working with both Slimstats and Woo commerce