The cause is completely unclear to me… the server will run fine for a while then the below happens. I thought it was related to the ETS session store and multiple tabs. The reason is at least in one instance having multiple tabs open all would fail but one. 15:34:20.822 [error] Ranch listener Clien…

Any idea? Once the above error happens it does not stop printing till all browser tabs are closed and the problem persists with each new open tab