update find unused wells

DB_utls.py

@@ -66,8 +66,8 @@ def find_unused_wells():
     df = pd.DataFrame(response)
 
     # Extract the "well" column as a list
-    if "well" not in df.columns:
-        raise ValueError("No available wells.")
+    #if "well" not in df.columns:
+    #    raise ValueError("No available wells.")
     # Sort obtained list
     def well_sort_key(well):
         row = well[0]  # A, B, C, ...