I've been playing modded zombies for a long time, and have never seen this error before. I have played the map many times as well and this just recently started happening. Whenever I try to launch it, it closes WAW and gives me the error: Need to allocate at least 4096 MB to load images. Sorry for asking this here, but I have looked everywhere online and can't find a solution. Thanks!

Edit: I've also tried running the game in the lowest settings possible as suggested by a video online, and that doesn't work.

Is it possible you ran out of space on your hard drive for it? How much free space do you have?

Nope  I still have over a TB. And I have plenty of RAM too.

in game go to: options > graphics and the specular map must be "on" that is the solution

later of that restart the game and have fun.

Thanks so much!! This worked.