fix for cluster manager

backend/src/landmarks/cluster_manager.py

@@ -102,9 +102,6 @@ class ClusterManager:
             selector = sel,
             out = out
         )
-        except Exception as e:
-            self.logger.warning(f"Error fetching clusters: {e}")
-
             if result is None :
                 self.logger.debug(f"Found no {cluster_type} clusters, overpass query returned no datapoints.")
                 self.valid = False
@@ -149,6 +146,14 @@ class ClusterManager:
                     self.logger.debug(f"Detected 0 {cluster_type} clusters.")
                     self.valid = False
 
+        except UnboundLocalError as ule: 
+            self.logger.warning(f"Error fetching clusters due to overpass crash: {ule}")
+            self.valid = False
+        except Exception as e:
+            self.logger.warning(f"Error fetching clusters: {e}")
+            raise Exception from e
+
+
 
     def generate_clusters(self) -> list[Landmark]:
         """