Creating custom item execute problem

I managed to create a custom object but for the life of me I can't run a function on it to add blocks under itself. Basically, the player right clicks and another block appears under the block they are standing on. These are the commands I have so far. Give command in expanding_island.mcfunction /give @p stick[item_model="skyvoid_advancements_resourcepack:creator_of_the_descent",item_name='{"color":"aqua","text":"Creator of the descent"}',lore=['{"color":"gray","text":"A powerful object that puts a block under you and allows you to descend."}','{"color":"red","text":"Draws a cobblestone from your inventory."}']] 1 Execute command in tick.mcfunction execute as @p[nbt={SelectedItem:{id:"minecraft:stick", tag:{item_model:"skyvoid_advancements_resourcepack:creator_of_the_descent"}}}] at @s run function skyvoid_advancements:creator_of_the_descent ** In this one says Unknown key “tags ** Execute command in creator_of_the_descent.mcfunction execute as @p[nbt={Inventory:[{id:"minecraft:cobblestone"}]}] at @s positioned ~ ~-1 ~ run setblock ~ ~ ~ minecraft:cobblestone execute as @p[nbt={Inventory:[{id:"minecraft:cobblestone"}]}] run clear @s minecraft:cobblestone 1 Im not skilled programator so im using AI. Can you please help me?