The rank condition ISN'T verified! depends on the constraint

Hello everyone,
I have a debt constraint in my model. I am struggling to understand why I have an issue “The rank condition ISN’T verified!” , when I specify the debt constraint in % of current capital stock bbar. If instead the debt in levels everything is all right.
There are 2 eigenvalue(s) larger than 1 in modulus
for 2 forward-looking variable(s)
The rank condition is verified."

  1. Debt in % capital stock C/K(-1)*(PSI/(1-RHO)-1)=bbar+(1+myn)*K/K(-1)
  2. Debt in levels C/K(-1)*(PSI/(1-RHO)-1)=Bbar/K(-1)+(1+myn)*K/K(-1)

What is the definition of

in your file?