PS Vita mobile network error C4-3575-0

full image - Repost: PS Vita mobile network error C4-3575-0 (from Reddit.com, PS Vita mobile network error C4-3575-0)

Hello, I have this new to me Vita and this error keeps popping up. I'm assuming that no one even uses the mobile network feature on the Vita anymore but does anyone have any information about this error and how to make it go away? Thanks.

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