I am getting the above error when I am attempting to install Adblocker. I Googled the error and found a couple of references to this being caused by 1) having cracked apps installed, which I do not, or 2) having PkgBackup installed which I do not either.
Does anyone know what may be causing this or how I can get around it?
The first day the app was on Cydia, it did not show on my iPhone as a paid app, and I got the error above when I tried to install it. A day or so later, it show as a paid app. I subsequently bought it and installed it without error.