what the error on that and didnt work????

[agile harness]

system.run(()=>{
for ( const player of world.getAllPlayers()){
const points = world.scoreboard.getObjective('Points').getScores(player.scoreboardIdentity);
if (points >100 ){
player.runCommand('give @s 1 diamnod_sword')
}}
})

[woeful glade]

getScores returns an array
use getScore instead

[thin bobcat]

diamond_sword