I don't think you have posted nearly enough info to even start helping you. your screenshot (what is it with everyone posting screenshots for literally everything?!? is that a FNF thing?) shows some code that may or may not be involved, who knows. what have your people done to debug your problem? what is server code, what is client code, where does it run, what targets are they using? do you have a small repro? what is the exact error message, where does it occur, what does your stack trace look like?