First of all, I've had several issues with Laserfiche Forms since version 10. I am on the latest version of 10.2 currently, and have re-installed Forms more than once in order to get things working. I finally thought I had it configured properly as I had everything working only to find that the workflow server cannot communicate with the forms server:

"The remote server returned an error: (500) Internal Server Error."

Navigating to the URL: localhost/Forms/Api/help

Returns the following error:

Here's the stack trace from Event Viewer on the Forms server:

System.ServiceModel.Activation.HostedHttpRequestAsyncResult/12369143 
   System.ServiceModel.ServiceActivationException: The service '/Forms/api' cannot be activated due to an exception during compilation. The exception message is: Could not find a base address that matches scheme https for the endpoint with binding WebHttpBinding. Registered base address schemes are [http].. ---> System.InvalidOperationException: Could not find a base address that matches scheme https for the endpoint with binding WebHttpBinding. Registered base address schemes are [http]. at System.ServiceModel.ServiceHostBase.MakeAbsoluteUri(Uri relativeOrAbsoluteUri, Binding binding, UriSchemeKeyedCollection baseAddresses) at System.ServiceModel.Description.ConfigLoader.LoadServiceDescription(ServiceHostBase host, ServiceDescription description, ServiceElement serviceElement, Action`1 addBaseAddress, Boolean skipHost) at System.ServiceModel.ServiceHostBase.LoadConfigurationSectionInternal(ConfigLoader configLoader, ServiceDescription description, ServiceElement serviceSection) at System.ServiceModel.ServiceHostBase.ApplyConfiguration() at System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses) at System.ServiceModel.ServiceHost..ctor(Type serviceType, Uri[] baseAddresses) at System.ServiceModel.Activation.WebServiceHostFactory.CreateServiceHost(Type serviceType, Uri[] baseAddresses) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.CreateService(String normalizedVirtualPath, EventTraceActivity eventTraceActivity) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(ServiceActivationInfo serviceActivationInfo, EventTraceActivity eventTraceActivity) at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath, EventTraceActivity eventTraceActivity) --- End of inner exception stack trace --- at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result) at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) 
   w3wp 
   11644 

It must be on the Forms server as it's clearly receiving the request.

I've had several other issues since 10 and never experienced any issues like this in 9.2. It's always something to do with Forms.