Error message

Hello,

*sigh* the learning curve for Drupal is so steep O_O (Please skip to end for question...back story follows)

I have the following PHP error message on my site. While it is not affecting adding content, the problem is that this error message is visible on the user end of the website:

"warning: call_user_func_array() [function.call-user-func-array]: First argument is expected to be a valid callback, 'views_access' was given in /usr/www/html/IAgroup4/includes/menu.inc on line 452."

I think what happened was this...

This morning, I downloaded the Views Module
I realized that I accidentally downloaded this module into another module's folder
So, I moved the Views module folder one level up
I then downloaded the Date, Views SlideShow, and Calendar Modules
When I enabled all modules in Drupal, my site crashed...When I went the site, I only got a blank screen...site did not load
So...I deleted the Views and all of its associated modules above from my module directory in the server
Now I am getting the above error message, and it is like a huge red zit on my site

So...my question is very stupid, but...is there a way to hide the error message on the user-end view? I don't know anything about PHP. My professor is the one who owns the server (my website is for a class project), but in case he cannot fix it...is there a way the message can be hidden?

Thanks!