I found the following response from Stave Zahn on a related ticket that seems to have a fix for the parse error crash problem, but the problem is all of the custom template work we did on the site such as on this page http://rairc.com/about-2/leadership/ are no longer working and the member search capability is now not working. So pretty unhappy about how this upgrade has basically messed up the site. Can someone on the connections team please get with me regarding this. Thank you.
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Please log into your site via FTP and delete the plugin’s folder:
Your data is safe.
Now, install Connections as you normally would install a plugin.
Apologies for the trouble!