AwoCoupon free 1.0.9 won't create coupon for VM if Total use: 2 is selected....

Hello!
I have a problem with awoCoupon free:
I created one coupon, for 2 uses of total, with the next settings:

Name: test
Function Type: Coupon
Number of Uses: 2 Total
Value Type: Percent
Value: 10.00
Minimum Value: 0.00
Discount Type: Specific
Customers: All
Products: 1 (let's say vm product id 29 is used for the product)

under Joomla 1.5.22, VM 1.1.7

Every time i try to use this coupon at the cart/checkout (when prod. id. 29 is in the cart), VM tells me, that "coupon code does not exist."
This is driving me insane, I've red myself through the forums and haven't found the cause. What am I missing?
Did i found a bug?

thanks:
Andrew

is this happening for all coupons in AwoCoupon or just this specific coupon? If it is all coupons, then maybe it is not fully installed. For that, take a look at this: https://awodev.com/documentation/awocoupon-virtuemart#Installation-2

Thank you, Seyi, it seemed that the injection was unsuccessful.
Problem solved! Thanks again.

Btw, a question: is it possible to permit a coupon discount for just one product in the cart instead of the full cart summary?
Example: I have Product A,B,C in my cart, where I'd like to give a coupon for product A.
(At the settings, I set product A as the only avaliable product for this coupon)
When i type my coupon code for product A, the coupon is applied to the full sum of the cart, instead of just product A.

You are welcome.

Set the discount type to specific. A discount type of overall discounts the whole shopping cart.

Thanks very much,Seyi!
You great support helped me much!
Such supportive developers are uncommon these days, imho.