Error message

• Notice: Undefined index: 55 in search_api_ranges_minmax() (line 188 of /home/alc/webapps/ddict/profiles/commerce_kickstart/modules/contrib/search_api_ranges/search_api_ranges.module).
• Notice: Undefined index: 47 in search_api_ranges_minmax() (line 188 of /home/alc/webapps/ddict/profiles/commerce_kickstart/modules/contrib/search_api_ranges/search_api_ranges.module).