Update vbach_portable_v2.py

vbach_portable_v2.py

@@ -4624,7 +4624,7 @@ def upload_separate_files(pth_file, index_file, dir_name, progress=gr.Progress()
             index_path = os.path.join(extraction_folder, os.path.basename(index_file.name))
             shutil.copyfile(index_file.name, index_path)
             
-        return t('model_uploaded', dir_name)
+        return t('model_uploaded', dir_name=dir_name)
     except Exception as e:
         raise gr.Error(t('model_load_error', error=str(e)))
 
@@ -4638,7 +4638,7 @@ def delete_model_name(dir_name):
         except Exception as e:
             raise gr.Error(t('model_delete_error', error=str(e)))
     else:
-        return t('model_not_found', dir_name)
+        return t('model_not_found', dir_name=dir_name)
 
 from vbach.cli.vbach import voice_conversion