updated data manager class

csst_common/params.py

@@ -90,7 +90,7 @@ class CsstSimParams(BasicParams):
     def __init__(self):
         # define versions of simulation
         # C denotes for Cycle
-        self.VER_SIMS = ["C3", "C5.1", "C5.2"]
+        self.VERSIONS = ["C3", "C5.1", "C5.2"]
 
 
 cp = CsstParams()