check if editor is null

components/eventModal.jsx

@@ -148,10 +148,10 @@ export default function EventModal({ open, close, event, refetch }) {
         date: new Date(event.date),
         time: [new Date(event.startTime), new Date(event.endTime)],
       });
-      editor.commands.setContent(event.description);
+      if (editor) editor.commands.setContent(event.description);
     } else {
       form.setValues(initialValues);
-      editor.commands.setContent(content);
+      if (editor) editor.commands.setContent(content);
     }
   };
 
@@ -226,7 +226,7 @@ export default function EventModal({ open, close, event, refetch }) {
           </Grid.Col>
           <Grid.Col sm={12}>
             <Text fz="sm">{t("description")}</Text>
-            <Editor editor={editor} />
+            {editor && <Editor editor={editor} />}
           </Grid.Col>
           <Grid.Col sm={12} md={6}>
             <DatePicker