problems accessing PlayStation store from my PS4

Anyone have the same problem accessing PlayStation store from their PS4 ? -Nearly every time I click on there i just get a blank blue screen ?

I have the same issue with my PS4 in the Netherlands. The store works perfectly on boot, but I am not able to log in after playing a game for 30 minutes or so. It will load eventually (most of the time), but it is annoying. All other network related features (Share, WWW) still work.