diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index 8fc9a34b..4b390ee1 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -1621,10 +1621,16 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
 
     def diff_results(self, solver1, solver2):
         if solver1 is None:
-            # TODO message
+            logger.warning(f"diff_results: solver1 is None")
+            self.msg_results_warning(
+                    info=self._trad["mb_results_not_found"]
+                )
             return None
         if solver2 is None:
-            # TODO message
+            logger.warning(f"diff_results: solver2 is None")
+            self.msg_results_warning(
+                    info=self._trad["mb_results_not_found"]
+                )
             return None
 
         solver3 = GenericSolver(solver1.name+" - "+solver2.name)
@@ -1638,6 +1644,9 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
 
         if result1 is None:
             logger.warning(f"diff_results: result1 is None")
+            self.msg_results_warning(
+                    info=self._trad["mb_results_not_found"]
+                )
             return None
 
         result2 = solver2.results(
@@ -1647,14 +1656,23 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
 
         if result2 is None:
             logger.warning(f"diff_results: result2 is None")
+            self.msg_results_warning(
+                    info=self._trad["mb_results_not_found"]
+                )
             return None
 
         if result2.get("nb_reach") != result1.get("nb_reach"):
             logger.warning(f"diff_results: nb_reach missmatch")
+            self.msg_results_warning(
+                    info=self._trad["mb_results_not_found"]
+                )
             return None
 
         if result2.get("nb_profile") != result1.get("nb_profile"):
             logger.warning(f"diff_results: nb_profile missmatch")
+            self.msg_results_warning(
+                    info=self._trad["mb_results_not_found"]
+                )
             return None
 
         result3 = Results(self._study, solver3)
@@ -1786,7 +1804,7 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
             else:
                 self.msg_results_warning(
                     info=self._trad["mb_results_not_found"],
-                    text=self._trad["mb_results_bin_not_found"]
+                    text=self._trad["mb_results_total_bin_not_found"]
                 )
 
     #################