Why my object is solid like this after adding subdivision surface modifier? I am trying to add more loop cuts for refining but unable to add them on soiled positions.
I have tried adding more loop cuts and also merge vertex by distance I mean remove the doubles.
1st image is after and before applying the subdivision surface modifier and the 2nd image is after I tried adding more loop cuts and details into my mesh.
I have tried and make changes as you instructed. I tried to clean my topology but my result is not clean. Where I am wrong now? Also uploaded the updated file.