Reset all settings/apps won't open

Hi im ALDRIN i have this iphone 3gs and i tried to reset the settings of my phone i click reset all settings under general after the phone boot i can't open any apps including msg,settings or etc everytime i click anything or any apps it returns to home and nothing happen, can anyone help me how to fix this?thanks in advance

 

the ios of iphone is 3.1.3, a while ago i did reset all settings and after reboot all the application wont open even settings or msg.how can i fixed it sir?
it is jailbroken bfore.