I have purchased 3 apps for my iPhone 4 recently using my friends Apple ID because i don't have a credit card so i used her Apple id instead, is that the reason why all of my apps are crashing? i also tried the "delete and install again" of some of the free apps i downloaded before and after that those free apps begin to work but the other 3apps that i have purchased arent. its been crashing a few times already. can someone please help?
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