Cannot add more than 2 products on quotes

Cannot add more than 2 products on quotes

Dear friends at Zoho,

My quotes module isn`t working.
When I`m adding products to the quote, it stops adding after the 2nd product is placed.
I customized the quotes module but I really can`t figure out where the problem is.

I`m waiting for your answer so that I can continue deploying Zoho in my company.

Thanks in advance,

Leo Kuba
Sao Paulo, Brazil