There have been some changes in SMSchat. The bug was fixed and the structure of access to the client changed.
Maybe it affected you too. Please ask yourself whether this applies to you.
The Client used to look like this
{"client": "Ann"}
Now we have changed the structure and it looks like this. That's right and that's how it should be.
{"client": {"name": "Ann", "image": "http:://..."}}
If this did not help you, please provide more information about the description of your request