Oracle BI Publisher: How to configurate log Errors

I'm working with a big database in Oracle BI publisher, when I generate the report it shows an error of too many data for the server. I'm thinking that it might be the ram memory. If i put a range of two months it works but with one year it brokes.

I was thinking that the error could be write in a log file. I want to find it and configurate to not having all the warming and advertises writen. Where I can configurate it??

Thanks.