Broken lock for SI inc. ME-2 Series Aluminum Horizontal Sliding window Low-e Clear.

Please see if you can replace this broken lock. I included a photo of the label on the window. There are no names on the lock. The only number I can find is 1CR-1, if that helps at all. We purchased the window at Home Depot in El Cajon, CA 92021.
Thank you for your help.

I purchased a lock from your company and have received it but the part that you depress to lock the window is too thick. I need a thinner locking mechanism. Thankyou