I have to ask why you are trying to install the " HAN Enabler " when you are on CFW? HAN is for " Non CFW Compatible PS3's " if you wanted to use the feature's of HAN on CFW you could install the HAN Toolbox and the features should of worked fine for you.
Its possible because you have tried to install HAN over the CFW this is causing the issue, possibly corrupting some of the files in dev_flash of the PS3.