wcs: don't fail on errors getting list of categories (#11167)

combo/apps/wcs/utils.py

@@ -36,6 +36,8 @@ def get_wcs_options(url, include_category_slug=False):
         site_title = wcs_site.get('title')
         response_json = get_wcs_json(wcs_site, url)
         if type(response_json) is dict:
+            if response_json.get('err') == 1:
+                continue
             response_json = response_json.get('data')
         for element in response_json:
             slug = element.get('slug')