okay it is one of the tables in the MYSQL database you setup to use for your forum.
You probably have phpmyadmin as a management tool from your host provider.
Using phpmyadmin open your database select the ubbt_cache table on the left side
I assume you used the default ubbt_ prefix.
Select the browse link at the top left.
Here you see the data.
Select the pencil icon to the left of max_online to edit that value.
change the cache_value number to what you want.
Then select the save option and then the go button.
You would do the same for the date but like I said I don't know what format it is in.
