fix condition to discard phase1 samples or not

Codes/main.py

@@ -1147,7 +1147,7 @@ if __name__ == '__main__':
         # an empty file will be saved and the future load will see
         # sampler.samples = [] which will bug the derivations of scales
         # from the covariance matrix
-        if n_traj_already_run == sampler.n_traj_fit:
+        if sampler.n_traj_hmc_tot == sampler.n_traj_fit:
             cut.logger.info(f"Only Phase I and II were asked to be run as n_traj_fit = {sampler.n_traj_fit}. Quitting here.")
             sys.exit()
         cut.logger.info("----------------------------------------------------------------------------")