devine.mac - generating functions



i am wondering if anybody ever used user-contributed package devine.mac which is guessing closed form of generating functions
   
  i had tried to load it into maxima 5.9.2 and get tons of various errors
  like this
  (dbm:3) guess([1,2,3]);
Inconsistent equations:  (1)
 -- an error.  Entering the Maxima Debugger dbmrationalinterpolation(xlist=[1],ylist=[2],x=x,m=0,k=0)(devine.mac line 190)
C:/work/devine.mac:190::