I cannot sing in to my messenger it suddenly disappear whenerver i sign in,the exception breakpoint?

i experience this notice: the exception breakpoint a breakpoint has been reached(0x80000003) occured in the application at location 0x0502b63c....then he ask me click ok to terminate the program click on cancel to debug the program.if i terminate and return to sign it will appear the same what should i do..do i have virus to my computer?