diff --git a/konova/management/commands/kspMigrater/compensation_migrater.py b/konova/management/commands/kspMigrater/compensation_migrater.py
index eecff9c0..3a40947d 100644
--- a/konova/management/commands/kspMigrater/compensation_migrater.py
+++ b/konova/management/commands/kspMigrater/compensation_migrater.py
@@ -178,7 +178,8 @@ class CompensationMigrater(BaseMigrater):
                         code_lists__in=[CODELIST_AFTER_STATE_BIOTOPES_ID]
                     )
                 except ObjectDoesNotExist:
-                    raise ObjectDoesNotExist(f"{compensation.identifier} has unknown state code: {state_type}")
+                    # total garbage - can not be processed. Jump to next entry
+                    continue
             tmp_cursor_z_code = self.db_connection.cursor()
             tmp_cursor_z_code.execute(z_code_sql.format(pkey_entry))
             z_code_results = tmp_cursor_z_code.fetchall()