BB Curve :: Unable To Access Anything (sms, Emails, Internet)

i recently downloaded an app and today i deleted it, it then rebooted. when it restarted it came up on the screen " uncaught exception: application net_ rim_bb_ messaging_app(60) is not responding; process terminated " and give me the option to press ok but wont do anything . the screen has frozen and i have emails and messages and it wont let me into them. There is also a new envolope box in between the where you recieve your emails and messages and it has a yellow envolope at the bottom of that. i've tried taken out the battery and restarting it but it does the same thing. it will let me in to everything but the things i need internet for as well