Dashboard

I just started getting an error on my dashboard. If I use the “/wordpress/wp-admin/” extension after my website address, I can access the Dashboard and it displays with no problems. But, if I access the dashboard with that URL, then click on the Dashboard tab, I get this error: “C:\******\*******\thepsychicpilot.com\wordpress\wp-includes\functions.php on line 2109” (I put the *’s in there on purpose) and instead of the normal dashboard information, it has an image of my homepage. I haven’t installed any plug-ins or messed with any of the .php files since this started a day or so ago.

I disabled all of my plug-ins (only had three active that have been active for 6-7 months at least) and cleared my cache – that didn’t help. I can access the dashboard with one URL, but f I am navigating to other tabs on the dashboard and try to go back to the main dashboard page, I get that error.

Does anybody know what could be causing that and how I can fix it? Should I try to re-up the functions.php file?