Null Pointer Exception while calling java action

Hi, We assign loans to a user using a java action / queued action.  We have 2 servers for the project. This queued action is working perfectly fine on our local instance and  on one server, but the same is not working on the other, for the same data. (We are getting a null point exception error)find the attached image Any help in resolving it ?
1 answers

Are both servers pointing to the same file storage?