              msg = "Load weights selected, but the path '%s' is not a valid Keras model (.h5) file."
  
          if msg:
              msg += " Please check and try again."
              logger.error(msg)
  
          logger.verbose("Using weights file: %s", weights_file)
          return weights_file
  
      def freeze(self):
 
</s> remove             msg = "Load weights selected, but the path '%s' is not a valid Keras model (.h5) file."
 </s> add             msg = (f"Load weights selected, but the path '{weights_file}' is not a valid Keras "
                   f"model (.h5) file.") </s> remove             msg = "Load weights selected, but the path '%s' does not exist."
 </s> add             msg = f"Load weights selected, but the path '{weights_file}' does not exist."
            raise FaceswapError(msg)
              msg = "Load weights selected, but the path '%s' is not a valid Keras model (.h5) file."
  
          if msg:
              msg += " Please check and try again."
            raise FaceswapError(msg)
  
          logger.verbose("Using weights file: %s", weights_file)
          return weights_file
  
      def freeze(self):
keep keep keep keep replace keep keep keep keep keep
 Bugfix -Weights freezing/loading for dfl-sae 
plugins/train/model/_base.py