🚑 Fix logger access

arcades/experiment/BaseExperiment.lua

@@ -511,7 +511,7 @@ function class:_plot_f1_score()
 end
 
 function class:_inputs_report()
-  self.logger:debug("Saving input frames.")
+  self._logger:debug("Saving input frames.")
   if #self.loop.train.inputs > 0 then
     image.savePNG(
       paths.concat(self.save_path, "train_inputs.png"),