Electronics

[Baxjaxmom]

Can someone please explain to me what this error message, "Runtime Error", means, what makes it arbitrarily and intermittently pop up on my screen? Is this something indicating there is a problem in my computer, is it something associated with a "virus", and is there a means to "repair" it? I am very technically challenged; therefore, please give that consideration in offering up an answer. TIA for any suggestions on dealing with this problem.

Previously, this has been intermittent when on the Internet; however, I have found the past couple of days when I use the "spellcheck" on this website, I get almost a full screen of "trash" on my screen that pops up with the "runtime error" as the basis. The option is just to click "ok" but it does not allow the spellcheck to work.