From my exp. when i got that error code I called playstaion and they told me that they where updating the psn store for new stuff so that may be the cause or to many people are logging in to get or redeem items. hope this help.
I'm.signed in and everything, is there maintenance?
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4/1 PSN Log In Issues - PlayStation® Community Forums
We're aware that some of you may be having issues logging in to PSN, specifically the PlayStation Store. We're aware of the issue and are activley working on resolving. I will update this thread with updates as they come, but do apologize for any inconvenience.
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