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After upgrading from 7.x-1.x-dev to 7.x-2.x-dev and installing the additionally required slideshow module and nivo library, I receive the following message on every webpage:
Notice: Undefined index: slideshow in include() (line 70 of /home/user/public_html/crypto-stick.com/sites/all/themes/andromeda/templates/page.tpl.php).
Any hint how to solve this?