I am not personally familiar with your specific
mod, but it doesn't sound like it is functioning properly. You may need to return it to the vendor you bought it from for a warranty exchange.
Any mod which autofires is a dangerous mod.
First, make sure that you are familiar with the mod itself to make sure that there is no user error on your part. The below review is of an earlier version of your mod. Pay attention to when the reviewer goes over the controls for operating that mod.