CiviCRM Home Menu Blank - Drupal 7
This sounds like a Javascript error - please check out this guide to troubleshooting Javascript errors in CiviCRM.  Feel free to update the question with more info if this gets you further to a solution.

Also - that fatal error sounds like it's related to Drupal core.  I'd fix that before trying to get CiviCRM working - it's much harder to fix a system broken in two places than one!