A workflow that is created with SharePoint Designer cannot be started.
The following error appears:
Error: The form cannot be rendered. This may be due to a misconfiguration of the Microsoft SharePoint Server State Service. For more information, contact your server administrator.
The startscreen for the workflow, which is actually an InfoPath form, cannot be displayed. This is because the State Service is not installed or is not active.
Start a SharePoint 2013 Management Shell session and enter these commands to setup a State Service.
$ss = New-SPStateServiceApplication -Name "State Service"
New-SPStateServiceDatabase -Name "WSS_StateService" -ServiceApplication $ss
New-SPStateServiceApplicationProxy -Name "State Service Proxy" -ServiceApplication $ss –DefaultProxyGroup