[RMVX ACE] ARC ENGINE CHANGE CHARA SPEED

I can't seem to get the script call to work like the pdf is telling me.

"The ARC ENGINE implements several new commands for events. You can call an event instance by using self_event (for the event itself) or $game_map.events. Also, you can call the player instance by using $game_player. From this point, consider char as self_event, $game_map.events or $game_player.
Each character position is given by two coordinates: ax and ay. Call:
x = char.ax
y = char.ay

You can set the character’s speed:
char. move_x(speed)
char. move_y(speed)"

I've put in:

$game_player char. move_x(=1) char. move_y(=1)

But it just crashes my game and I get this error


Any ideas on why this keeps happening?

Hmmm. The first one crashed everything and the second one was glitchy. It wouldn't let me jump so I removed the Y variable part. But that just made my character moonwalk. (Move on her own)

I'm implementing this as a parallel process using the script command in events, is any of that wrong?