Fix redundant logic block

journals/templates/journals/_base.html

@@ -47,7 +47,7 @@
     <footer class="secondary container-fluid py-2">
         <div class="row my-1">
             <div class="col-12">
-                {% if journal.issn %}
+                {% if journal.active %}
                     {{journal}} is published by the SciPost Foundation under the journal doi: 10.21468/{{journal.name}} and ISSN {{journal.issn}}.
                 {% endif %}
             </div>