diff --git a/tdx-enhanced.js b/tdx-enhanced.js
index d83e96f..35f0de8 100644
--- a/tdx-enhanced.js
+++ b/tdx-enhanced.js
@@ -1226,9 +1226,11 @@
                 updateHeading(t)
             }
 
-            for (const instance in CKEDITOR.instances) {
-                ckeinjectCustomCss(CKEDITOR.instances[instance]);
-            }
+            try { 
+                for (const instance in CKEDITOR.instances) {
+                    ckeinjectCustomCss(CKEDITOR.instances[instance]);
+                }
+            } catch (error) {}
 
             //search whole document, frames may reset when reopened
             // let frames = document.querySelectorAll("iframe:not(.customEmbed)")
@@ -1364,9 +1366,8 @@
         CKEDITOR.on('instanceReady', function(event) {
             ckeinjectCustomCss(event)
         })
-    } catch (error) {
-
-    }
+    } catch (error) {}
+    
     async function injectToolbar() {
         let iconBar = document.querySelector("#globalSearchBar")