I am running a Magento multistore and recently upgraded to 18.104.22.168. Strange issue arose: With certain configurable products I get an internal server error upon cart placement, and this only in one domain/storeview.
This is the error I get in my server logs:
[Fri Jul 15 16:07:29 2016] [error] [client 22.214.171.124] FastCGI: incomplete headers (0 bytes) received from server "/dev/shm/izinqcom-php.fcgi", referer:http://www.wimperwensen.com/godefroy-instant-eyebrow-tint.html [Fri Jul 15 16:07:29 2016] [error] [client 126.96.36.199] (104)Connection reset by peer: FastCGI: comm with server "/dev/shm/izinqcom-php.fcgi" aborted: read failed, referer:http://www.wimperwensen.com/godefroy-instant-eyebrow-tint.html
Since it only happens with one storeview and not all configurable products I am completely in the dark as to why this happens.
Any suggestions welcome!