dooceswild dude, you are not the only one having the same error with the same apps. I have a similar configuration on my vita (except the nonpdrm plugin) and since yesterday that I tried to use either VHBB or the PSN store I get the same error as you. I thought it was corruption problem on my SD Card that I use on my SD2VITA but now I read this and some other people having the same problem. It seems Sony did something to ruin us again and force us to update, but I don't know why VHBB is affected as well.