Service invocation failed by timeout on hosted service

I am getting Service invocation failed by timeout error on my hosted service. It is strange because it worked few days ago. My app ID: 2D632C8B-1E3A-529B-FF66-A8D9CC0DC700.
The service call is:
https://api.backendless.com/v1/services/PostService/1.0/FeaturedPosts

Hi!
Could you send your hosted service project to support@backendless.com
for our investigation?

Sent.

We have fixed this issue, could you try again?

Thank you very much. What caused the issue?