fixed the gtk error spam

ui/main.glade

@@ -1,33 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.36.0 -->
+<!-- Generated with glade 3.22.2 -->
 <interface>
   <requires lib="gtk+" version="3.22"/>
-  <object class="GtkListStore" id="ListItems">
-    <columns>
-      <!-- column-name Name -->
-      <column type="gchararray"/>
-      <!-- column-name PriceYen -->
-      <column type="gchararray"/>
-      <!-- column-name PriceAUD -->
-      <column type="gchararray"/>
-      <!-- column-name Ending -->
-      <column type="gchararray"/>
-      <!-- column-name id -->
-      <column type="gchararray"/>
-    </columns>
-    <data>
-      <row>
-        <col id="0" translatable="yes">The Stinchinator</col>
-        <col id="1" translatable="yes">¥599</col>
-        <col id="2" translatable="yes">$5.99</col>
-        <col id="3" translatable="yes">7 hours</col>
-        <col id="4" translatable="yes">12345</col>
-      </row>
-    </data>
-  </object>
   <object class="GtkWindow" id="wndMain">
     <property name="can_focus">False</property>
     <property name="default_width">700</property>
+    <child type="titlebar">
+      <placeholder/>
+    </child>
     <child>
       <object class="GtkBox">
         <property name="visible">True</property>
@@ -290,7 +270,6 @@
                       <object class="GtkTreeView" id="TreeViewItems">
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
-                        <property name="model">ListItems</property>
                         <property name="rules_hint">True</property>
                         <property name="search_column">1</property>
                         <property name="activate_on_single_click">True</property>
@@ -309,9 +288,6 @@
                             <property name="clickable">True</property>
                             <child>
                               <object class="GtkCellRendererText"/>
-                              <attributes>
-                                <attribute name="text">0</attribute>
-                              </attributes>
                             </child>
                           </object>
                         </child>
@@ -321,9 +297,6 @@
                             <property name="title" translatable="yes">Price (¥)</property>
                             <child>
                               <object class="GtkCellRendererText"/>
-                              <attributes>
-                                <attribute name="text">1</attribute>
-                              </attributes>
                             </child>
                           </object>
                         </child>
@@ -333,9 +306,6 @@
                             <property name="title" translatable="yes">Price (AUD)</property>
                             <child>
                               <object class="GtkCellRendererText"/>
-                              <attributes>
-                                <attribute name="text">2</attribute>
-                              </attributes>
                             </child>
                           </object>
                         </child>
@@ -346,9 +316,6 @@
                             <property name="clickable">True</property>
                             <child>
                               <object class="GtkCellRendererText"/>
-                              <attributes>
-                                <attribute name="text">3</attribute>
-                              </attributes>
                             </child>
                           </object>
                         </child>
@@ -828,8 +795,5 @@
         </child>
       </object>
     </child>
-    <child type="titlebar">
-      <placeholder/>
-    </child>
   </object>
 </interface>