Error message

• Notice: Trying to get property 'nid' of non-object in casestudy_display() (line 38 of /var/www/vhosts/d7.dedi-002.websitedevelopment.ltd.uk/httpdocs/sites/se2/modules/se2_casestudies/se2_casestudies.module).
• Notice: Trying to get property 'title' of non-object in casestudy_display() (line 38 of /var/www/vhosts/d7.dedi-002.websitedevelopment.ltd.uk/httpdocs/sites/se2/modules/se2_casestudies/se2_casestudies.module).
• Notice: Trying to get property 'nid' of non-object in casestudy_display() (line 54 of /var/www/vhosts/d7.dedi-002.websitedevelopment.ltd.uk/httpdocs/sites/se2/modules/se2_casestudies/se2_casestudies.module).
• Notice: Trying to get property 'nid' of non-object in casestudy_display() (line 38 of /var/www/vhosts/d7.dedi-002.websitedevelopment.ltd.uk/httpdocs/sites/se2/modules/se2_casestudies/se2_casestudies.module).
• Notice: Trying to get property 'title' of non-object in casestudy_display() (line 38 of /var/www/vhosts/d7.dedi-002.websitedevelopment.ltd.uk/httpdocs/sites/se2/modules/se2_casestudies/se2_casestudies.module).
• Notice: Trying to get property 'nid' of non-object in casestudy_display() (line 54 of /var/www/vhosts/d7.dedi-002.websitedevelopment.ltd.uk/httpdocs/sites/se2/modules/se2_casestudies/se2_casestudies.module).