diff --git a/PVPlantPlacement.py b/PVPlantPlacement.py
index 1a03175..dc770b0 100644
--- a/PVPlantPlacement.py
+++ b/PVPlantPlacement.py
@@ -156,7 +156,7 @@ class _PVPlantPlacementTaskPanel_old:
                 newrack.Placement = placements[idx]
                 group.addObject(newrack)
                 frames.append(newrack)
-        except:
+        except (KeyError, TypeError, AttributeError):
             placements = dataframe[0]
             frames = []
             for idx in placements:
@@ -696,7 +696,7 @@ class _PVPlantPlacementTaskPanel_new1:
                 newrack.Placement = placements[idx]
                 group.addObject(newrack)
                 frames.append(newrack)
-        except:
+        except (KeyError, TypeError, AttributeError):
             placements = dataframe[0]
             frames = []
             for idx in placements:
@@ -1310,7 +1310,7 @@ class _PVPlantPlacementTaskPanel:
             self._terrain_interpolator = LinearNDInterpolator(
                 filtered_points[:, :2], filtered_points[:, 2]
             )
-        except:
+        except Exception:
             self._terrain_interpolator = None
 
         return self._terrain_interpolator
@@ -1357,7 +1357,7 @@ class _PVPlantPlacementTaskPanel:
                         z_bot = slope * bot_point.y + intercept
                     else:
                         z_top = z_bot = 0
-                except:
+                except Exception:
                     z_top = z_bot = 0
             else:
                 # Fallback to direct projection (slower)
@@ -1373,7 +1373,7 @@ class _PVPlantPlacementTaskPanel:
                         z_bot = slope * bot_point.y + intercept
                     else:
                         z_top = z_bot = 0
-                except:
+                except Exception:
                     z_top = z_bot = 0
 
             new_top = FreeCAD.Vector(top_point.x, top_point.y, z_top)
@@ -1436,7 +1436,7 @@ class _PVPlantPlacementTaskPanel:
         try:
             cut = frame_footprint.cut([self.Area])
             return len(cut.Vertexes) == 0
-        except:
+        except Part.OCCError:
             return False
 
     def getAligments(self):