multiMAN black screen

Good day

I need help or maybe someone can explain the problem I have...
I've bought a 3.55 CFW PS3 (Dont know which version CFW is installed) without a working laser..

But today I tried and this is my problem.
I Installed all necessary pkg’s and multiman. Now for some reason when I want to launch multiman it launch into a black screen? I have not added any backups yet so its not a game black screen but multiman itself that does not launch correctly it goes to black screen and stays there till I shut PS3 off.

Any help will be appreciated.
Thanks