since a week I have a problem with cydia. all tabs are enpty also the sources of them are empty the only thing he is displaying is the text on the image and if he reloads its changed nothing, anyone know why this might be?
Clear out all the repositories except for the default ones by using iFunBox/iExplorer/SSH. Go to the below directory using one of those 3 utilities to do so
SSH/iFunBox/iExplorer/iFile into the below directory, use Notepad (on computer) or Text Viewer (iFile) to open up the "cydia.list" file and delete all repos except the stock ones, or just leave the "apt.saurik.com" and "thebigboss.org" ones and reboot your device
Reinstall Cydia using iFunBox/iExplorer/SSH. Download the latest version of Cydia (1.1.8) below.
If you're using iFunBox, navigate to Raw System File/var/root/Media/Cydia/AutoInstall and drop the .deb below in there. If you don't see the directory, create it with the case-sensitive names, meaning "AutoInstall" must have a capital A and I. Reboot your device and Cydia should updated.
If you're using iExplorer or SSH, navigate to var/root/Media/Cydia/AutoInstall and drop the .deb in there. Again, if you don't see the "AutoInstall" directory, create it
Method 1 and 2 are basically the same, both of them clears out your repositories which can fix the error of a bad repo (the 2nd and 3rd error you're getting). Method 2 is basically the universal Cydia error solution. If all fails, restore and rejailbreaking is always the failsafe.
This is a 5 year old thread and methods have changed. More important, Restoring a jailbroken iPad through iTunes will update the iOS version to iOS 11.2.5 which does not yet have a public jailbreak available. Re-jailbreaking will not be possible at this time.