Any ideas what might be causing this when we try to activate a copied appraisal template?

Table "appraisal_quest_data_23" already exists

More information about this error
Debug info:
Error code: ddltablealreadyexists
Stack trace:

   line 425 of /lib/ddl/database_manager.php: ddl_exception thrown
   line 931 of /totara/appraisal/lib.php: call to database_manager->create_table()
   line 262 of /totara/appraisal/lib.php: call to appraisal->create_answers_table()
   line 53 of /totara/appraisal/activation.php: call to appraisal->activate()