Fix unicode error in subsection

common/djangoapps/microsite_configuration/templatetags/microsite.py

@@ -18,7 +18,7 @@ def page_title_breadcrumbs(*crumbs, **kwargs):
     """
     separator = kwargs.get("separator", " | ")
     if crumbs:
-        return '{}{}{}'.format(separator.join(crumbs), separator, platform_name())
+        return u'{}{}{}'.format(separator.join(crumbs), separator, platform_name())
     else:
         return platform_name()
 
@@ -37,4 +37,4 @@ def platform_name():
     Django template tag that outputs the current platform name:
     {% platform_name %}
     """
-    return MicrositeConfiguration.get_microsite_configuration_value('platform_name', settings.PLATFORM_NAME)
\ No newline at end of file
+    return MicrositeConfiguration.get_microsite_configuration_value('platform_name', settings.PLATFORM_NAME)