Custom command saying "Unexpected identifier 's' [<context>:1:880]"

Hiya, your pastebin includes a few syntax errors. If the title includes a apostrof ' like: the King\'s Ranger of Redmont Fief make sure to add a slash in front of it to 'escape' that character.

Your updated pastebin should look something like this:

['the Pink Knight of the Salty Himalayans',
'the No-Spoon Knight who wields Knives instead',
'the Sparkly Knight of Neruo',
'the Hyperkinetic Knight of Endless Side Quests',
'the Latin Knight of the Sorta Ricans',
'the Dragon Knight of Dangerous Dungeoneering and Deceptive Diplomacy',
'the Christian Knight of the Lionhearted Guard',
'the Beloved Servant of the Holy Word',
'the Wise Knight',
'the Shakespearean Knight renowned for grammatical prowess',
'the Poorman’s Knight known for his bad luck and flying pants',
'Sir Loin the Cow Knight',
'Sir Plant the Traitorous Knight',
'Sir Cardian of Rhythm',
'Sir Valence the Sneaky Knight',
'Sir Ohsis of the Liver',
'Sir Cole of the Round Table',
'Sir Prise of Secret Tactics',
'Sir Real the Perpetually Surprised',
'Sir Anwrap the Protector of Agricultural Goods',
'Sir Render the Cowardly',
'the Valorous First Blade',
'the Royal Commander of King\'s Guard',
'the King’s Paladin',
'the Holy Warrior',
'the Red Ronin',
'the One-Armed Barbarian',
'the Wandering Samurai',
'the Crimson Crusader',
'the Warrior Poet',
'the Knight who Doesn\'t Do Anything',
'the Last Jedi Knight',
'the Friendly Neighborhood Knight',
'the Apprentice of Miracle Max',
'the Grand Phobah of This and That',
'the Ghost of Gaijin Lands and Samurai of the West',
'the Master Chief Petty Officer of the United Nations Space Command',
'the Sole Surviving Knight of the Wasteland',
'the Terrarian Hero who vanquished Cthulhu',
'the King Under the Mountain',
'the Dark Knight',

​
'the Inheritor of Martin the Warrior the Champion of Redwall',
'the Chosen Knight who wields the Sword that Seals the Darkness',
'the Looper Hero of the Fortnite Island',
'the Rookie Farmer of Stardew Valley',
'the King\'s Ranger of Redmont Fief',
'the Goose Girl of Bayern',
'the Officer of Colonel Forster\'s militiaman',
'the Bloody Baron of Slytherin House',
'the Spark Knight of Fish Blasting',
'the Reckless Knight who Loves Others more than Himself',
'The Silver-Lined Knight who Rejoices in All Things',
'the Peaceful Knight who is always Content',
'the Patient Knight who waits for Leavened Bread',
'the Kind Knight of Grace and Second Chances',
'the Good Knight of Samaria',
 'the Wrestling Knight of Faith',
'the Lily-Wreathed Knight of Gentleness',
'the Temperance Knight of True Liberty',
'the Redeemed Knight without Shame',
'the Steadfast Knight of Truth',
'the Lightbearing Knight of the Watch',
'the Prayerful Knight of Hope through Joy and Sorrow',
'the Galilean Knight of Calm in the Storm',
'the Wrathful Knight of Justice and Honor',
'Lord Brainy the Backseat Commander',
'Sir Gigglesworth of Merriment',
'Mister Clean the Squeaky Knight',
'the Knight of Noot',
'the Pinocchio Knight of Tall Tales',
'the Night Knight of the Eepy Curse',
'the Flame Knight of Arsonry',
'the Origami Knight of Paper Cuts',
'the Clown Knight of Buffoonery',
'Sir Prise II Patron Knight of Playful Pranks',
'the Diamond Chainsaw Knight',
'the Butter-Loving Golden Knight',
'the Fancy Nancy Knight',
'the Starving Knight of the Bottomless Stomach']

Thank you so much! It worked!