dav_events/templates/dav_events/event_detail.html

@@ -198,7 +198,7 @@
                                 <a role="button" href="#collapseStatusLog" data-toggle="collapse"
                                    data-parent="#log-accordion" aria-expanded="true"
                                    aria-controls="collapseStatusLog">
-                                    Status-Log
+                                    Status-Flags
                                 </a>
                             </h5>
                         </div>

dav_events/templatetags/dav_events.py

@@ -60,7 +60,11 @@ def render_event_changelog(event):
             subchanges = json.loads(change.content)
             for subchange in subchanges:
                 field_label = event._meta.get_field(subchange['field']).verbose_name
-                if len(subchange['refer']) + len(subchange['current']) > 20:
+                try:
+                    is_long_strings = (len(subchange['refer']) + len(subchange['current'])) > 20
+                except TypeError:
+                    is_long_strings = False
+                if is_long_strings:
                     separator1 = u'<br />'
                     separator2 = u'<br />'
                 else: