Editor has blanked out due to insertion of line of code - Help ASAP!

[DroneKoll]

Hi,

I had added a line of code from somewhere into my website and now it has blanked out completely and I cannot see anything. This webiste is for my internal assessment and I will fail without it. Thus, please can you undo the website back to the point where I had not pasted that line of code. Sadly, I do not know which line of code it is. Thank You

[Adam7]

I see four sites in your account so I'm not sure which site it is you added it to, @DroneKoll. We can't undo changes made in the editor, though I might be able to help remove the code if I know which site and what code I'm looking for.