I have a jailbroken iPod touch 2nd gen and am having some problems. My cydia app will not open. It starts loading and then the screen turns black for like 5 seconds and it closes. I looked at ways to fix it and I found out iFile could solve the problem. I went to iFile and tried to delete the suggested files in private/etc/apt/sources.list.d and it said "Error the file(filename) could not be deleted". What can I do to fix iFile and then cydia?!?