Thank you so much @irlawrence & @childprotectioninnov , I’m now able to sort this out. Noting this down incase if it helps for future users.
Because of three columns missing in system_settings table my command rails db:seed didn’t run correctly and hence no users were created which i didn’t notice till you give me a hint to create the users.
I created these columns manually, thanks for the hint in this post here
After that i re-ran rails db:seed & were able to use primero/primer0! credentials itself
