Did you get any errors during the upgrade process?
Did you do the upgrade from the command line or web interface?
From which version did you upgrade?
Can you look into the database and see if your mw_delivery_server table has a column called warmup_plan_id ?
Did you get any errors during the upgrade process? No i did not get any errors during upgrade process
Did you do the upgrade from the command line or web interface? Web interface
From which version did you upgrade? from 2.0.24
Can you look into the database and see if your mw_delivery_server table has a column called warmup_plan_id ? I think no column for warmup_plan_id, refer attached screen shot for your reference