The problem is regarding SSH connection. I have an ubuntu server on remote machine(digital ocean droplet). I am not logged in as root user. Instead I have created another user in which I'm having python code. When I try to deploy using Github actions, code just worked fine but when I try to push this on ubuntu remote server it's showing this image.It seems like the connection issue. I'm a very beginner in this who is eager to learn. I'm not sure if I have explained my problem well enough.If any information is needed I can provide.
When I googled about my issue, I got solutions like add id_rsa and id_rsa.pub to the remote server. I tried but nothing worked.