SMF For Free Support Forum

Forum Url: http://askvanessa.freesmfhosting.com
I have just changed the url of my forum and can't log on any more. The new site is http://www.ask-vanessa.com. There's also this running along the top - Notice: Undefined offset: 3 in C:\sites\freesmfhosting\index.php on line 117. I don't know what to do to solve this. Can someone please help? Thank you.

It didn't recognise my password and then the screen went blank with only - Notice: Undefined offset: 3 in C:\sites\freesmfhosting\index.php on line 117 showing. I tried it just now though and the notice is gone and I can log in again. If you did something - thank you very much.