when in the inventory menu and you go to the constuction inventory and none of my addpns are there

Yesterday i was playing minecraft and the construction menu that has all  my addons was there. now i turn my game on today and all my addons in the construction menu are now gone. minecraft  updated today to 1.17.30.20 and today i dont have my addons in the costruction menu. i hope this gets fixted soon coz im making a city world. thank you