Scipy - ODEINT problem

Ali morda kdo ve, kaksna napaka pri modeliranju procesa opisanega z 60 diferencialnimi enačbami producira tole javljanje:

lsoda-- at current t (=r1), mxstep (=i1) steps
taken on this call before reaching tout
In above message, I1 = 500
In above message, R1 = 0.857...E+01
Excess work done on this call (Perhaps wrong Dfun type).
Run with full_output = 1 to get quantitative information.

Tudi po zagonu z full_output = 1 je program javil enako napako z dodanim KeyError: 0.

Na napake v zapisu enačb ali parametrov ne ciljam, ker sem ta-iste zagnal v Jarnac programu, kjer je sistem deloval.

LP