Handle DPFServerException error (remote case)

Author: PProfizi

src/ansys/dpf/core/operators/operator.mustache

@@ -7,7 +7,9 @@ Autogenerated DPF operator classes.
 from __future__ import annotations
 
 from warnings import warn
+{{#has_internal_name_alias}}
 from ansys.dpf.core.core import errors
+{{/has_internal_name_alias}}
 from ansys.dpf.core.dpf_operator import Operator
 from ansys.dpf.core.inputs import Input, _Inputs
 {{#outputs}}