Improve error handling for csv when aborting

Author: C-Achard

napari_cellseg3d/code_plugins/plugin_model_training.py

@@ -949,8 +949,10 @@ def on_finish(self):
 
         self.log.print_and_log("Done")
         self.log.print_and_log("*" * 10)
-
-        self._make_csv()
+        try:
+            self._make_csv()
+        except ValueError as e:
+            logger.warning(f"Error while saving CSV report: {e}")
 
         self.btn_start.setText("Start")
         [btn.setVisible(True) for btn in self.close_buttons]