fix

ui.py

@@ -25,7 +25,7 @@ url_download_button = gr.Button(
 input_video = gr.Video(
     label=ui_lang["input_video_label"], interactive=True)
 input_video_button = gr.Button(
-    ui_lang(["input_video_button_value"]), interactive=True)
+    ui_lang["input_video_button_value"], interactive=True)
 start_time = gr.Textbox(
     max_lines=1, placeholder="00:00:00", label=ui_lang["start_time_label"], interactive=False)
 end_time = gr.Textbox(
@@ -125,7 +125,7 @@ def change_lang(input):
         input_video.update(
             label=ui_lang["input_video_label"]),
         input_video_button.update(
-            ui_lang(["input_video_button_value"])),
+            ui_lang["input_video_button_value"]),
         start_time.update(
             label=ui_lang["start_time_label"]),
         end_time.update(