Error message when player connects

Hi guys

I GM a game and had the following error come up a couple of weeks ago. Since then, both the GM (that's me!) and the player have done an FG update (last week). When we ran the game last Friday night the error came up again. Note, it only happens for one player's log-in. All the other players are fine.

Does anyone know what might be causing this? Didn't appear to impact the game... just don't like random error messages :(

Thanks in anticipation

Whoever has v3.3.8 is running in "test" mode, not "live". Unless they are specifically testing something they know is in test, it’s not recommend to run in test mode. They can change to "live" in he settings window, the run an update to change to v3.3.7.

Sorted... tx!