In this guide, i'll be explaining how to fix this common conflicting apps error on Nokia Asha and other S40 phones.
* Backup your phone data using the Backup Utility (in settings) or Nokia PC Suite.
* Launch Operamini and go to http://download.browser.ovi.com/ (Email the link to yourself then use the email app if Operamini doesn't work)
* Re-download the Nokia Browser and install it.
* When prompted whether to keep data, select NO
The issue should now be resolved; if not, do a factory reset then repeat the procedure.