whenever I attempt to type out a text message over 3 words the app closes giving the error message
"Internal error. Application 'conversations' closed"


I get a similar message on the browser if I try to type more than 3 words into google search etc


before you people say:
Google this or
use power search for similar questions etc

I already have

everyother thread says restore Nokia N900 using maemo tools on pc etc
Which I am unable to do right now


So currently my phone is useless as a phone

Please tell me howto fix PLEASE