If it is in your local vagrant, we can try out these steps… In case of a production/hosted machine… we will have to handle with care. In case you want to try the new RPM which has odoo related fixes, try these steps out, [In local only and you will loose other configurations done in other modules]
In case you want to try only with removal of bahmni-erp, try this,
bahmni -i local stop yum remove -y bahmni-erp psql -Upostgres -c “drop database if exists openerp;” yum install -y bahmni-erp bahmni -i local start