Post Links Not Working — Guidance Please!

Subject says it all. Masthead and sidebar links are working fine; but sociable, and posts links are not operational and I can’t figure out why for the life of me.

I just checked and rechecked every recent change I’ve made to the site and nothing seems to interfere with posts. I searched for similar issues on the boards and nothing helped. I checked my site for coding errors and I’m not seeing any error files relevant to this problem.

Site: https://www.secondhelpingonline.com

Please help for different ways I can troubleshoot this. Please.