Random()
iFunBox: Error# e8008001 – Sorry for the inconvenience. *FIX*
by admin on Oct.06, 2014, under Random()
If you ever got stuck with iFunBox displaying a useless error message entitled Error# e8008001 and saying “Sorry for the inconvenience. Please send us feedback.” you’d simply want to open up Cydia and search for the most recent AppSync you can find in it. After installing it and restarting your SpringBoard, iFunBox will no longer fail to install your apps.
Alternatively, as pointed out by the user “Dan” in the comment section, set your phone to airplane mode.