Hacking Npdrm_free 6.1

[Yygyyg1]

I have been using npdrm_free 6.1 on my psp 3000 on 6.60 pro-c fix3 and what it allows you to do is use psn psp eboot without a valid license file. So I loaded up some eboots and the plugin works fine and the games work good until I put my psp in sleep mode then resume the game, the game will then freeze and I don't know why. I have tried plenty of eboots and they all have this problem. I have formated my memory stick and tried it on my psp 2000 on 6.61 pro and it still freezes. I have also tried it on 6.60 lme2.2. Has an body tried this plugin and have a similar problem?