prevent visitor log from displaying error message cities is not defined as api...

prevent visitor log from displaying error message cities is not defined as api does not always return it

plugins/Live/templates/getVisitorProfilePopup.twig

@@ -88,9 +88,9 @@
                             {%- for entry in visitorData.countries -%}
 
                                 {% set entryCity -%}
-                                    {% if 1 == entry.cities|length and entry.cities|join -%}
+                                    {% if entry.cities is defined and 1 == entry.cities|length and entry.cities|join -%}
                                         {{ entry.cities|join }}
-                                    {%- elseif 1 < entry.cities|length -%}
+                                    {%- elseif entry.cities is defined and 1 < entry.cities|length -%}
                                         <span title="{{ entry.cities|join(', ') }}">{{ 'UserCountry_FromDifferentCities'|translate }}</span>
                                     {%- endif %}
                                 {%- endset %}