That's not an error code. That's the description of a javascript call in html page as shown at the bottom of the browser screen when you hover over the link. But you don't tell what browser you use nor what your home page is.
What I should do: go into my browser and set the home page to blank (how to do that depends on which browser you use, but it's somewhere in the options). Then close the browser and restart it, so you get a blank screen. Then type any valid url into the address bar (www.google.com is what I use in such a case) and see what happens.
Kees
I have that error code come up when i try to get on the internet. Please help, what does this code mwan and how do i fix it?

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