alexa custom skill not working in Reverb

I have developed a custom skill, which is working well with Alexa test tool, but even after enabling the skill on Alexa app, it is not working with reverb.

PS:

I'm running skill server locally on my computer with the help of reverse proxy.
skill is not published yet.
I've logged in with the same account on both reverb and Alexa app.
Language is set to US English in both apps and in skill config.

Solution

got it. had to say "ask skill-name to [do some operation]" instead of "start skill-name". reason unknown.