Cseries :: C6-00 Can't Remove Installed Applications

I can't remove installed applications, and I can't use the Installed applications menu at all. I can open Menu >> Settings >> Application mgr. >> Installed apps. but from there nothing is working. When I try to make a bigger scroll I have dropped back immediately to the Application mgr. menu. When I push the Options in the Installed apps. menu I get the following message:
App. manager: Memory full. Close some applications and try again.I don't have any opened applications. A widget on my home screen said, there is 39 MB free RAM, and there is 189 MB free space on my C: drive. It should be more than enough for anything what this phone can run...How can I remove and set up applications not using the Installed applications menu?My another biggest problem is Ovi. I purchased the "application" called AirSpace, it was listed as a compatible application with my phone. It's just not working at all. Later I checked the reviews, there is only one poeple who said "It's working". I'm almost 100% sure that was one of the "developer" of this "application"... I reported it to the Ovi Store, and demanded refund. There was no answer. I tried the application again after a software update, it went wrong in the same way. I reported it again. Not a word from the store...how can I get my money back, and how can I make this fake app remove from the Ovi?