Your job (or industry) is still in the off-season, or the job demand is low. You can compare your friend's posts to prove whether it meets this point.
Years ago, your resume was viewed many times. Is there any situation where you have few contact information? If you have read it many times, but there are few contact information, it means that your resume is not attractive to headhunters. It may be that there is no bright spot in the resume content, which leads to the system showing your resume less.