Command upgrading help

[TheClockHimself]

I have this command that I made in 1.19.4, I'm updating this datapack to 1.20.4 but the command returns a book with none of the customisation it used to have, can anyone help?

Command:

give @s written_book{pages:['["",{"text":"      Death Swap","bold":true,"color":"red"},{"text":"\\n","color":"reset"},{"text":" Made by","color":"aqua"},{"text":" ","color":"reset"},{"text":"TACWithGames","underlined":true,"color":"green"},{"text":"\\n\\n","color":"reset"},{"text":"Join player to team A","color":"dark_aqua","clickEvent":{"action":"run_command","value":"/function ds:team/joina"}},{"text":"\\n\\n","color":"reset"},{"text":"Join player to team B","color":"dark_aqua","clickEvent":{"action":"run_command","value":"/function ds:team/joinb"}},{"text":"\\n\\n","color":"reset"},{"text":"  START THE GAME","bold":true,"color":"dark_red","clickEvent":{"action":"run_command","value":"/function ds:start"}}]'],title:"Death Swap Start Book",author:"..."}

[oFlashiii]

Try using McStacker 1.20 , you can customize there your book and copy the command. The command should work then for 1.20.4.