Hi, I need help here:

I purchased a PS ONE classic game from the R2 store into my PS3. The game also can be copy to the PSP. The problem is when I connected my PSP to my PS3, a message appear:
"The connected PSP is activated with a different account. If you perform this operation, the current activation will become invalid."
Have anyone come across this problem? I did not dare to proceed as I do not know what will happen next (to my PSP or PS3). FYI, my PSP runs on customware 5.50 Gen D. Desperately need advice.

Thanks.