Can't find anything to explain your error message. 'create' is not used anywhere afaik and it is not a valid command in ET. And if it appeared on one of the 6 classic maps I am stumped. Maybe you have a corrupted file. Does the error throw you out of the map?
I do not believe any fov cvars will have any effect on the bots. fov normally only affects your own player, and besides bots scan, they don't just look statically in one direction. The bot abilities are set by the console commands /bot_skill (ai), /bot_aimskill, by their XP and by the
waypoint setting for bot_SightDist. The latter bot_SightDist is set by the waypointer to mimic the effect of fog etc on human players as well as being set to reflect how far apart the teams are in parts the map. The former 2 console commands you can change at any time in the map, or include in a cfg file. You could even include them in the <mapname>.cfg file that is loaded when that map starts.