Does your soft phone work fine when you are using it regularly without trying any click to dial?
I mean does it register to your server, etc?
I am using FOP2 and it works really well. It has a chrome extension that you can use to click and dial numbers on websites, as well as click to dial other extensions in your environment of course. Support is also very competent.
But looks like you need to fix your Asterisk setup first.
You didn't post a lot of information on your setup, so with that little bit you will have a hard time getting people respond to you with something you can use.