Drupal Errors after Installation

Question

I'm new to drupal, and just trying to get it up and running smoothly.

I installed it manually on my Go Daddy account, but I'm getting these errors when I click on the customization links at the top of the screen:

I can still do things (add content, etc.) but since I'm new, I have no idea if there is anything not being shown to me because of these errors. I just did a fresh install and I'm still having the same problems. Any ideas?