It looks like some stdio piping issue, however, I'm not sure what is wrong exactly.
Observing the stack trace, it looks like you communicate with jsreport v2 server but you mention you have the latest jsreport package versions. Are you sure you have jsreport.Binary@3.11.0?
If you open http://localhost:5488, don't you see an old jsreport?
You can check in taskmgr the node.exe processes a kill them to be sure there is no old jsreport running.