404 for configgateways.php

Hello,

I have just noticed an issue, whenever I go to try and configure a gateway I get a 404 error on configgateways.php, I have checked the error log on the server and nothing (Not even a 404), I have cleared the cache, reuploaded the file, verified the name and the directory. Has anyone else had this problem or a fix to it?

Any help would be great.

Thanks!