Error while estimating gas

> Please provide us with the following information:
> ---------------------------------------------------------------

### This issue is for a: (mark with an `x`)
```
- [x ] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
```

### Minimal steps to reproduce
> create a blockchain workbench. open app the app page. upload the simplemarketplace.json and .sol files.
add the same owner as per Owner and Buyer
create a new contract with any description and price equal to 1.
Take action and make an offer of 1.
the following error shows up:
The action failed. Please check your input or code and try again. Your administrator can use RequestId to look up details in Application Insights

### Any log messages given by the failure
> Error while estimating gas. Exception gas required exceeds allowance (700000000) or always failing transaction

### Expected/desired behavior
>the state changes to offer made

### OS and Version?
> Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?). not applicable

### Versions
>

### Mention any other details that might be useful
as a sample it should works as expected. if there is any extra setting or change to be done to make it work, it should be written in the doc
> ---------------------------------------------------------------
> Thanks! We'll be in touch soon.