I hope for you ;)
you know here a lot of people try to help, but we have ours works too, and it's not really easy to answer quickly. don't forget that :-)

now a good thing to do :
explain clearly what you want to do.
give here your last ls_script

your script will need to work on 2.1.3 or on the next version 2.2 ?
I said that because script is not exactly the same...

I've I said before, that's seems to be normal
your re-declare default twice..

I'm searching how to write that...

you need to change :

default = rotate(weights=[1,2,1,5],[jingles,replays,jingles,singles]) 
ignore(output.dummy(default, fallible=true)) 

and :

default=fallback([
        switch([
           # ({ (0w or 1w or 2w or 3w or 4w or 5w or 6w) and 7h-12h}, silkmornings),
            ({ (0w or 2w or 3w) and 2h-7h}, chillout),
            ({ (3w) and 19h-21h}, hortaweekly),
            ({ (0w) and 20h-21h}, moranhelman),
            ({ (6w) and 21h-23h}, tranceilsessions),
           # ({ (5w) and 18h-19h}, danmeyer),
            ({ (6w) and 18h-19h}, dashalove),
            ])
            ])

by something like that :

# Schedule
    #silkmornings = rotate(weights = [1, 6], [jingles,silk])
    chillout = rotate(weights = [1, 6], [jingles,chill])
    hortaweekly = rotate(weights = [1, 1], [jingles,hortaclassic])
    moranhelman = rotate(weights = [1, 1], [jingles,helmano])
    tranceilsessions = rotate(weights = [1, 1], [jingles,tilsessions])
    #danmeyer = rotate(weights = [1, 1], [jingles,danmeyerdeep])
    dashalove = rotate(weights = [1, 1], [jingles,dasha])
        
rotating = rotate(weights=[1,2,1,5],[jingles,replays,jingles,singles])

default=fallback([
        switch([
            ({ (0w or 1w or 2w or 3w or 4w or 5w or 6w) and 23h-07h}, rotating),
            ({ (0w or 2w or 3w) and 2h-7h}, chillout),
            ({ (3w) and 19h-21h}, hortaweekly),
            ({ (0w) and 20h-21h}, moranhelman),
            ({ (6w) and 21h-23h}, tranceilsessions),
           ({ (5w) and 18h-19h}, rotating),
            ({ (6w) and 18h-19h}, dashalove),
 ])
            ])

ignore(output.dummy(default, fallible=true)) 

two different errors here
and i don't really understand the firt one (perhaps rotating is not a good name...)

for the second, have you modified others scripts than ls_script ? or call to others scripts from ls_script ?

Reply to @Albert+FR: