[Maxima] problem loading "dynamics"

[Andrei Zorine]

Hello,

I face a problem while loading dynamics package: 
(%i1)  load("dynamics")$
; 
; compilation unit aborted
;   caught 1 fatal ERROR condition

Load failed for dynamics
 -- an error.  To debug this try debugmode(true);

I'm using Maxima 5.15.0
Using Lisp SBCL 1.0.6

How do I learn where the problem sits? setting debugmode(true), then :bt shows 
nothing.

--
Andrei Zorine