fixed add time button rendering issue

Author: Mole1424

static/js/event-management.js

@@ -346,7 +346,7 @@ document.addEventListener("DOMContentLoaded", () => {
         // validate end times
         document.querySelectorAll("input[name='end_time[]']").forEach(validateEndTime);
 
-        toggleAddTimeButton();
+        if (addTimeButton) toggleAddTimeButton();
     }
 
     initialiseTimes();

templates/events/form.html

@@ -217,7 +217,7 @@ <h1>{% if event %}Edit{% else %}Create{% endif %} Event(s)</h1>
                 </div>
             </div>
 
-            {% if event %}
+            {% if not event %}
                 <!-- add time -->
                 <div class="col-12 d-flex justify-content-center">
                     <button type="button" class="btn btn-secondary disabled col-4" id="add-time">Add Time</button>