I'm attempting to shell out a body but am encountering some errors:

"one of the faces may offset into an adjacent face, a small face may need to be eliminated, or one of the faces ..."

The diagnostic tool that comes up shows two error tags as shown in the attached screenshot:

At this point I'm getting close to nearly complete as for modeling, and would like to keep moving forward. Thanks in advance.

p.s. Part is attached too.