Thanks for your post and welcome to the Nokia forum.
We are really sorry for this inconvenience.
In order to fix this issue, I would advise you to check if your phone's software is up to date via this link, enter *#0000# on your keypad to display your current version.
If your phone needs to be updated, connect it with Nokia suite and click on the green arrow icon. Any available updates will be listed here.
If the problem persists, I would suggest you to perform a hard reset. First of all, back up your data using Nokia Suite (Tools > Back up). Once your data is fully backed up, type *#7370# on the keypad. Default lock code is 12345.
The hard reset will dellete all your personal information, that's why a back up is very important.
Let us know how you get on and feel free to post any other questions you may have.
I'm also facing the same problem.I tried just phone reset but it didnt help.The thing is that the problem started only a few days back while I had updated my store version months ago.Is a hard necessary mandatory to solve this store app accessing problem?
I use a Nokia C3-00, V 08.63, 25-03-11, RM-614 that I bought in the UK, it was working fine until I updated it and then whenever I tried to access the OVI Store it said "Conflicting Applications, Show items?" and it gave you a choice of "yes" or "no" and whenever you selected "yes" it would come to a blank page, also there was an other problem where games and applications wouldn't work, but I solved that by restoring factory settings. But I really need help on my OVI Store problem. I wish I could download Nokia PC Suite, but it is unavailable for Mac. Is there a way to get it on Mac. Or any other way to solve my OVI Store problem??? That would be very much appreciated if you could help me...
You can enter *#0000# on your keypad.