The problem still seems to be that your source for roms is no good. I know its not much help but emulation does have a degree of learning and trial and error involved. At some point
everyone involved in the use of emulators has had to do some research to find the things they want and how to make them work.
Sites like this can help you get things running when you run into problems but to get support you need to be more detailed in your requests, by listing what system you are running the emulators on (PC specs), what emulators you are using, what actions you've taken, and what error messages or behaviour is causing you a problem so people can identify the type of problem you have.
So far you've only really said that Kawaks is reporting missing files which indicates that your roms are old or broken.
Just stating 'emulator (a), (b), or (c) doesn't work' doesn't give people any idea about what you've tried, what version of the emulator you're using, what game you're having problems with, the name of the rom thats not working, what if any error the emulator is reporting or causing, what PC you are trying to run it on. All of this is relevant info to post to help people identify your problem and give you a solution that will fix it.
You need to help us to help you.
As for your out of date roms issue, there isn't really any way around that on this site, the rules are explicit that discussion of romsites is prohibited so that is something you will need to research and find a solution for on your own.