diff --git a/src/public/js/episode/handle_upload.js b/src/public/js/episode/handle_upload.js
index 9c7a52d7c7f8055cf7837d33cce005cd05fb72c6..19747a567e4ed3a153aebe1207098f05ab3e817d 100644
--- a/src/public/js/episode/handle_upload.js
+++ b/src/public/js/episode/handle_upload.js
@@ -120,60 +120,68 @@ handleFormSubmit("add-episode-form", function () {
     let imgUrl = "/upload?type=image";
     let fileField = document.getElementById("poster-file-upload");
     let imgFormData = new FormData();
-    if(fileField.files[0]){
+    if (fileField.files[0]) {
       imgFormData.append("filename", fileField.files[0].name);
       imgFormData.append("data", fileField.files[0]);
-    } else{
+    } else {
       imgFormData.append("data", null);
     }
 
     try {
       let xhrImg = uploadEpsFile(imgUrl, true, imgFormData);
       xhrImg.onload = () => {
-        formData.append("preview-poster-filename", xhrImg.responseText);
-
-        try {
-          // upload audio to server
-          let audioUrl = "/upload?type=audio";
-          let audioFileField = document.getElementById("audio-file-upload");
-          let audioFormData = new FormData();
-          audioFormData.append("filename", audioFileField.files[0].name);
-          audioFormData.append("data", audioFileField.files[0]);
-
-          let xhrAudio = uploadEpsFile(audioUrl, true, audioFormData);
-          xhrAudio.onload = () => {
-            formData.append("audio-filename", xhrAudio.responseText);
-
-            try {
-              let xhr = createEpisode(formData);
-              xhr.onload = () => {
-
-                const response = JSON.parse(xhr.responseText);
-                
-                if (xhr.status === 200) {
-                  // window.location.href = "/episode";
-                  if (response.success) {
-                    showNotificationSuccess(response.status_message);
-                    setTimeout(() => {
-                      location.replace(response.redirect_url);
-                    }, 3000);
-                  } else {
-                    showNotificationDanger(response.status_message);
-                  }
-                } else {
-                  console.error("Request failed with status:", xhr.status);
+        const response = JSON.parse(xhrImg.responseText);
+        if (xhrImg.status === 200) {
+          formData.append("preview-poster-filename", xhrImg.responseText);
+
+          try {
+            // upload audio to server
+            let audioUrl = "/upload?type=audio";
+            let audioFileField = document.getElementById("audio-file-upload");
+            let audioFormData = new FormData();
+            audioFormData.append("filename", audioFileField.files[0].name);
+            audioFormData.append("data", audioFileField.files[0]);
+
+            let xhrAudio = uploadEpsFile(audioUrl, true, audioFormData);
+            xhrAudio.onload = () => {
+              const response = JSON.parse(xhrAudio.responseText);
+              if (xhrAudio.status === 200) {
+                formData.append("audio-filename", xhrAudio.responseText);
+
+                try {
+                  let xhr = createEpisode(formData);
+                  xhr.onload = () => {
+                    const response = JSON.parse(xhr.responseText);
+
+                    if (xhr.status === 200) {
+                      if (response.success) {
+                        showNotificationSuccess(response.status_message);
+                        setTimeout(() => {
+                          location.replace(response.redirect_url);
+                        }, 3000);
+                      } else {
+                        showNotificationDanger(response.status_message);
+                      }
+                    } else {
+                      console.error("Request failed with status:", xhr.status);
+                    }
+                  };
+
+                  xhr.onerror = function () {
+                    console.error("Error during XMLHttpRequest");
+                  };
+                } catch (error) {
+                  console.error("Error creating episode:", error);
                 }
-              };
-
-              xhr.onerror = function () {
-                console.error("Error during XMLHttpRequest");
-              };
-            } catch (error) {
-              console.error("Error creating episode:", error);
-            }
-          };
-        } catch (error) {
-          console.error("Error uploading audio:", error);
+              } else {
+                showNotificationDanger(response.error_message);
+              }
+            };
+          } catch (error) {
+            console.error("Error uploading audio:", error);
+          }
+        } else {
+          showNotificationDanger(response.error_message);
         }
       };
     } catch (error) {
@@ -181,32 +189,3 @@ handleFormSubmit("add-episode-form", function () {
     }
   });
 });
-
-handleFormSubmit("delete-episode-form", function () {
-  let form = document.getElementById("delete-episode-form");
-  let formData = new FormData(form);
-
-  let episodeId = 0;
-  for (let [key, value] of formData.entries()) {
-    if (key == "episode_id") {
-      episodeId = value;
-    }
-  }
-  try {
-    let xhr = deleteEpisode(episodeId);
-
-    xhr.onload = () => {
-      if (xhr.status === 200) {
-        window.location.href = "/episode";
-      } else {
-        console.error("Request failed with status:", xhr.status);
-      }
-    };
-
-    xhr.onerror = function () {
-      console.error("Error during XMLHttpRequest");
-    };
-  } catch (error) {
-    console.error("Error during XMLHttpRequest:", error);
-  }
-});
diff --git a/src/public/js/episode/handle_upload_edit.js b/src/public/js/episode/handle_upload_edit.js
index 13340261bd9f1d332b36d41b34050d42f3d58a55..a5a0d143e987cb6b177a2c1463d51157f3a1a70e 100644
--- a/src/public/js/episode/handle_upload_edit.js
+++ b/src/public/js/episode/handle_upload_edit.js
@@ -157,11 +157,17 @@ handleFormSubmit("edit-episode-form", function () {
         try {
           let xhrImg = uploadEditedEpsFile(imgUrl, true, imgFormData);
           xhrImg.onload = () => {
-            formData.append(
-              "edit-preview-poster-filename",
-              xhrImg.responseText
-            );
-            resolve();
+            const response = JSON.parse(xhrImg.responseText);
+
+            if(xhrImg.status === 200) {
+              formData.append(
+                "edit-preview-poster-filename",
+                xhrImg.responseText
+              );
+              resolve();
+            } else {
+              showNotificationDanger(response.error_message);
+            }
           };
           xhrImg.onerror = reject;
         } catch (error) {
@@ -184,8 +190,14 @@ handleFormSubmit("edit-episode-form", function () {
         try {
           let xhrAudio = uploadEditedEpsFile(audioUrl, true, audioFormData);
           xhrAudio.onload = () => {
-            formData.append("edit-audio-filename", xhrAudio.responseText);
-            resolve();
+            const response = JSON.parse(xhrAudio.responseText);
+            console.log(xhrAudio.responseText);
+            if (xhrAudio.status === 200) {
+              formData.append("edit-audio-filename", xhrAudio.responseText);
+              resolve();
+            } else {
+              showNotificationDanger(response.error_message);
+            }
           };
           xhrAudio.onerror = reject;
         } catch (error) {