Hi

I am not a oracle expert. But still i hope the problem is oracle is not able to find the cursor to close. so it means either the cursor you are trying to close is already closed or oracle does not provide u to close a cursor this way. Upto my understading in my degree a cursor opened inside a PL/SQL block (BEGIN .... END) has to be closed within the block.
Hope this helps
Its not releated to perl any way????