I have taken old paper off but it has left lining paper. Can I put new lining paper over this then paint?

I have taken old paper off but it has left lining paper. Can I put new lining paper over this then paint?

We live in a humid area of Hawaii. I came home yesterday and saw that the windows were steamy…I haven’t seen this before. Then today, I notice that the living room ceiling paint has wet streaks. I noticed this after my shower, and didn’t run my fan. Could this be

We live in a humid area of Hawaii. I came home yesterday and saw that the windows were steamy…I haven’t seen this before. Then today, I notice that the living room ceiling paint has wet streaks. I noticed this after my shower, and didn’t run my fan. Could this be