URGENT!!! RB4 problem...experts, please help

[stain]

hi everybody.
i just wanted to add a trade partner to my RB4 list. after that, i got the error message:
RB4 WARNING : Index file is zero, using backup!

what's that? after the message my stats totally fucked up, and when surfers click on my site on out.php, they won't get sent to my trade partners...

please help me quickly!!!! i'm losing lots of traffic!!!

[run]

Your server disk is full.
WIth any other script you would have lost database by now.

Contact your host and tell them to make some space on disk.