why aren't this commands working?

execute as @e[tag=steel_ball_projectile] at @s run function gyro_zeppeli:steel_balls/damage with entity @e[tag=steel_ball_projectile,sort=nearest,limit=1]
$execute as @e[name=!$(CustomName),distance=..3] run damage @s 5 minecraft:player_attack by @a[name=$(CustomName)]