I wasn't aware of Pondini but have looked through it. I discovered that by going to Get Info and unlocking the hard drive and all of its subfolders (time consuming, I know), that I could restore everything without the error message. I still don't know why I got the message, it was never a problem previously.
For any one who might be in the same spot:
Just paid apple support for solving this Q.
And...yes, its a matter of disc permissions.
The problem is easily solved.
In finder, select the time machine disc.
The first folder you´ll see should read something like:
select it and view its info.
In the buttom, you´ll see the permission-field
Your name(as administrator) will have to be there. If its not, click the + below, and select yourself from the menu.
Make it "read & write"
Now, with "you" selected, click the little wheel below, and click "use on subfolders" (or something like that).
Your done :-)
Now, the disc will begin changing the permissions on all the files...might take a while...
Happy recovery :-)