thank you so much for your reply, actually it solved automatically. and now I do not have any problem.
I used a free VPN application and it has a dynamic IP.
My AppId: 01B43E68-0688-4864-8634-1665D3C29E74
I didn`t know multi-location is forbidden on this plan and I forced to pay 25$ for cloud 9 to unblock my API. I’ve only begun of my business and it is hard for me to pay for this plan.
I have a request,
before I activated the springboard I used the free version of BackendLess and my account is old. please do me a favor and reactive that the free version accounts for me.