Question second user on old phone - Google Play error

[Junkie]

HI, Im new here and Im only guessing Im posting in the right area.

I have an old phone that Ive setup a second account on for my son to play some basic games. However after switching to the second account the Play Store doesnt seem to be working. The app opens but the search doesnt show any results, like its not connecting to the internet. If I switch to my account then everything is fine. WHat do I have to do to get the play store to work so I can load his games?

thanks

Phone is a Pixel 3, Android v 12