Set lore of item

[ImMeh]

When i click on a hoe with 3 lores set with a knowledge book, it sends "4 is the next free spot" but it doesn't set the line to "Yes"

on inventory click:
   if clicked item is hoe:
       if clicked cursor is knowledge book:
           set {_l} to 1
           while line {_l} of clicked item's lore is set:
               if line {_l} of clicked item's lore is set:
                   add 1 to {_l}
               if line {_l} of clicked item's lore is not set:
                   set the {_l}st line of clicked item's lore to "Yes"
                   send "%{_l}% is the next free spot"
                   exit loop

 

[Potato]

Try to remove (st) in "set the {_l}st line of clicked item's lore to "Yes"".

 

[ImMeh]

set the {_l} line of clicked item's lore to "Yes"

It gives me the error

Can't understand this condition/effect: set the {_l} line of clicked item's lore to "Yes"

 

[Potato]

try "Set line {_l} of clicked item's lore to "Yes""

 

[ImMeh]

Doesn't work. Even if i replace {_l} with 4 which is not set, it doesn't change anything. If i change it to 3 which is set, it still does nothing.