Invoke Service method failing after Blaze 7.7 upgrade

Hi, I am new to working with Blaze and I was tasked with upgrading a java weblogic application from Blaze 7.4 to 7.7. I completed the upgrade per documentation I was given, (swapped in new 7.7 jars and rebuilt the adv files on my weblogic domain). Now when I try to deploy the application I'm getting an error coming from and invokeService method on a class that extends NdStatelessEjbServerBean.

The invocation looks like this:

this.invokeService(serviceName, entryPointId, null, args);
//Note this extends NdStatelessEjbServerBean

With the serviceName and entrypointId variables both being non null string values. I then get this error upon deployment:

30-Jun-2021 09:51:35 [ERROR] Unable to load [removed]
java.rmi.RemoteException: EJB Exception: ; nested exception is:
javax.ejb.EJBException: com.blazesoft.server.deploy.ejb.NdWrappedEJBException: com.blazesoft.util.NdWrappedRuntimeException: Failed invoking service [BlazeRepoName] for client context ID null.
Server 'Uspecified server configuration.' on host [Laptop].
Attempt to access a server deployment before setting its key.
Failed invoking service [Service Name] for client context ID null.
Server 'Uspecified server configuration.' on host [Laptop].
Attempt to access a server deployment before setting its key.

• The same code works on Blaze 7.4 and the old adv files, none of the service names or ids have been changed. I noticed that NdStatelessEjbServerBean is an older class and the documenation suggests replacing it with it NdStatelessEjbServerAppBean, however there is another call to a NdStatelessEjbServerBean's invoke service method somewhere else in the project for a different blaze rule project and that works fine. This may be too implementation specific but figured I would ask to see if there is a known fix for this type of issue.