load error: failed to find

Error message

Error 0: load error: failed to find [any].n2less

Cause and solution

Some of your files are missing on your server for some reason, like the n2less file the error message points to. As you see at the Alternative Update methods, do a reinstallation, which will hopefully put all your files where they suppose to be. Your sliders will stay, so you don't have to worry about them!