Not a function in function call

[Predrag Terzic <pedja.terzic@hotmail.com>]

The following code works fine inside Sage Math Cell:

n=22;

compositorial(n)={c=1;l=[];forcomposite(i=1,n,c=c*i;l=concat(l,[nextprime(c+2)-c]));return(l);}

print(compositorial(n));

You can run this code here.

But, this one doesn't :

n=22;

prevprime(k)={p=1;while(p<k,r=p;p=nextprime(p+1));return(r);}

compositorial(n)={c=10;l=[];forcomposite(i=1,n,c=c*i;l=concat(l,[c-prevprime(c-1)]));return(l);}

print(compositorial(n));

You can run this code here.

I am getting the following message:

PARI/GP interpreter crashed -- automatically restarting.
***   at top-level: print(compositorial(n))
  ***                       ^-----------------
  ***   not a function in function call

How to fix this problem?