[DeStunter]

If you create an array with 16 index's, the index bounds are 0-15 not 1-16.
PlayerTextDrawHide(playerid, call[playerid][i+10]);
PlayerTextDrawHide(playerid, call[playerid][i+9]);

That way when the loop runs the code 6 times it will call 9-15 which is within your bounds.