It means you're calling a procedure, view or function from your procedure, and then from that proc calling another, etc 32 levels deep. Or it could be recursive with the proc calling itself.
Either way, you're going to have to track down where that is coming from and change the code so that the nesting level isn't anywhere close to that deep. There's no way to change the maximum nesting level.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability