Sony confirms PlayStation Store for PS3, PS Vita closing this summer - Polygon

Sony confirmed on March 29, 2021 that PlayStation Store access for the PlayStation 3, PlayStation Vita, and PlayStation Portable will end on Aug. 27, 2021 (for PS3 and Vita) and July 2, 2021 (for PSP). All previously purchased content is still available for owners to download and play, regardless of platform.

Report: Sony shutting down PS3, PS Vita, and PSP PlayStation Stores - Polygon

Sony Closing PlayStation Store On PS3, Vita, And PSP This Summer

Sony closing PSN Store for PS3, PSP and PS Vita this summer - CNET

PlayStation Vita - Wikipedia

Confirmed: PlayStation Store to be closed for PS3 and PSP on July 2nd, and for PS Vita on August 27th, 2021. PS Vita's messaging function will also be closed down starting June

PlayStation 4 - Wikipedia

PS3 and PS Vita PlayStation Store shutting down this summer, Sony confirms

PlayStation, Ultimate Pop Culture Wiki

PlayStation 3, Ultimate Pop Culture Wiki