Uninstall AppInfo, then hard reset the device. Simultaneously press and hold both the power and home buttons together until you see the Apple logo, then release both buttons. If you see your screen flash (screencapture), then you slightly mistimed it, just reattempt. Once it boots up again, install AppInfo again.
Sources
http://repo666.ultrasn0w.com/
BigBoss
http://apt.thebigboss.org/repofiles/cydia/dists/stable
Cydia/Telesphoreo
http://apt.saurik.com/dists/ios/847.21
ModMyi.com
http://apt.modmyi.com/dists/stable
moyashi repository
Index of /apt
rpetrich repo
rpetri.ch repo
ZodTTD & MacCiti
http://cydia.zodttd.com/repo/cydia/dists/stable
Packages
Action Menu - 1.2.14
Activator - 1.8.4~beta13
adv-cmds - 119-5
AppInfo - 1.6.2
AppList - 1.5.8
APR (/usr/lib) - 1.3.3-2
APT 0.7 (apt-key) - 0.7.25.3-3
APT 0.7 Strict (lib) - 0.7.25.3-13
AttachmentEncryptor - 0.1
Barrel - 1.7.4.0-1
Base Structure - 1-4
BigBoss Icon Set - 1.0
Bourne-Again SHell - 4.0.17-13
bzip2 - 1.0.5-7
Core Utilities (/bin) - 8.12-7p
cURL - 7.33.0-8
Cycript - 0.9.501
Cydget - 0.9.4012
Cydia Installer - 1.1.12
Cydia Substrate - 0.9.5001
Cydia Translations - 1.1.12
Darwin Tools - 1-4
Debian Packager - 1.14.25-9
Debian Utilities - 3.3.3ubuntu1-1p
Diff Utilities - 2.8.1-6
evasi0n 7.x Untether - 0.3
FakeClockUp - 0.5-6
Find Utilities - 4.2.33-6
Flipswitch - 1.0.4~beta3
GNU Privacy Guard - 1.4.8-4
Goo.gl Shortener for Action Menu - 1.0-15
Gregorian - 0.2
grep - 2.5.4-3
gzip - 1.6-7
iOS 7 LockScreen Weather - 1.5
iOS Firmware - 7.0.4
iPhone Firmware (/sbin) - 0-1
libhide - 2.4.1-1
libstatusbar - 1:0.9.7.1.2
LiveWeatherIcon - 0.4
LZMA Utils - 4.32.7-4
Messages Customiser - 2.4.1
Messages+ - 7.5.1
Messages+ (iOS 7 Library) - 7.5.1
MyWi 7 - 7.06.01
MyWi 7.0 (iOS 7 Library) - 7.06.01
MyWi OnDemand - 7.06.01
New Curses - 5.7-13
NoSlowAnimations - 3.1-15
OpenSSL - 0.9.8y-10
PAM (Apple) - 32.1-3
PAM Modules - 36.1-4
pcre - 8.30-5p
Pebble Profiles - 1.0-10
PebbleSiri - 0.6-5
PebbleUUIDFix - 0.9-1
pincrush - 0.9.2-1
PreferenceLoader - 2.2.2
Profile Directory - 0-2
readline - 6.0-7
RocketBootstrap - 1.0.2
sed - 4.1.5-7
shell-cmds - 118-6
Smartwatch+ - 1.500.2
SMS Stats 2 - 1.0.2-1
SSLPatch - 1.0
Substrate Safe Mode - 0.9.4000
system-cmds - 433.4-12
Tape Archive - 1.19-8
UIKit Tools - 1.1.8
Virtual Home - 1.3-1
Widget Weather - 1.5-43
WinterBoard - 0.9.3915
Zeppelin - 2.0.2
Zeppelin Angry Birds logos - 0.3
Zeppelin MLB American League - 0.1
Zeppelin NFL Logos - 0.2-2