We're constantly working hard on updating the Tesseract Theme to keep it user friendly and being the best theme available. When transitioning from Tesseract 1 to Tesseract 2 certain plugins are no longer necessary and interfere with the functionality of the content blocks which can make the header disappear and the contact 7 form function improperly. Below are a list of plugins that should be deactivated and deleted from Tesseract 2.
Disclaimer: It is recommended that your data be backed-up before you remove SiteOrgins Plugins or update your site. Learn how to back up your site here.