Error message

• Notice: Undefined index: template in include() (line 22 of /homepages/21/d93015512/htdocs/library/organic_connectivity/connectivity.tpl.php).
• Warning: include(): Filename cannot be empty in include() (line 22 of /homepages/21/d93015512/htdocs/library/organic_connectivity/connectivity.tpl.php).
• Warning: include(): Failed opening '' for inclusion (include_path='.:/usr/lib/php7.4') in include() (line 22 of /homepages/21/d93015512/htdocs/library/organic_connectivity/connectivity.tpl.php).