Multiman not booting up after installing (Black screen)

Hi everyone!

I am new to the ps3 jailbreak, but I managed to install the latest version of evilnat cfw by following a tutorial. And now I need Multiman and Webman in order to run games on it, but I installed a couple times from brewology and Multiman just won't boot up, just a black screen for 30 minutes and I need to hard restart the console. Neither does webman / webman mod. Does anyone have a solution?

Thanks!