Surely many have given you this notice. The problem may be that you have installed a launcher that does not belong to the shop or market that you have installed an application that is not compatible with your device present elements, such as an incompatible type of advertising.
One application that has created this problem for many users is the keyboard, specifically TouchPal. The best recommendation would be to uninstall applications installed since you started to receive these notifications.
Has anyone found another solution to this problem?