diff --git a/app/models/user_action.rb b/app/models/user_action.rb
index 6052e975c..51b492053 100644
--- a/app/models/user_action.rb
+++ b/app/models/user_action.rb
@@ -66,9 +66,12 @@ class UserAction < ApplicationRecord
   def build_mode(model_name)
     model = model_name.constantize.new
     model_name.constantize.column_names.each do |col|
-      model[col] = self.data_bank[col]
+      data = self.data_bank.class == String ? JSON.parse(self.data_bank) : self.data_bank
+      model[col] = data[col]
     end
     model
+  rescue =>err
+    return nil
   end
 
   private