[plugin:NextGEN Gallery] change upload limit?

Well, I was trying to upload a zip file as I wanted to upload all my photos in batch rather than one by one and i realised that it’s stated that the upload limit is 2mb, which doesn’t make sense at all. Is there any way where i can raise the limit?

I’m not sure whether tht’s the problem, but as soon as i upload a zip file of like…20mb then the server not found page will come out