The connectors are going wrong way
Also little tip in the ? It says about shift+arrow keys to draw connectors it will help you fix it faster.
If you want the direction you need vector like your look vector but i would recommend using Mass exodus with negative speed. It's not as efficient unless there is at least 3 arrows but it's lot more simple it only needs caster>entity position> and negative speed and list of projectiles. Also projectiles in ground can't be manipulated with add motion but blink works.
Another thing i would recommend is to read the X it tells you the problem and you can't take x y z out of an entity if you shift and hover you will see the piece input and output but you need from entity to vector
Entity position is position in world and entity look is direction. Be careful sometimes the piece takes direction (aka relative vector to X position) or position in world (aka relative to 0,0,0 that you can see with most Map mods or in F3 also your look in F3 is in degrees But psi uses Radians and 1m/3/t (aka 20m/3/s is 1 speed unit in Psi)