Whenever I press tab, the menu for all the players stays up on the screen and spits this error

vgui.Create: Error when calling 'TTTScoreboard':Init ([@terrortown\gamemode\vgui\sb_row.lua:155] bad argument #1 to 'SetText' (string expected, got boolean))
[terrortown\gamemode\cl_scoreboard.lua:39] attempt to index global 'sboard_panel' (a nil value)(Hook: ScoreboardShow)

Any Ideas?