THE RANK CONDITION PROBLEM for MONETARY UNION

Hello,
I have two country model which run perfectly with independent monetary policies, but when im trying to run the model with a single monetary policy in order to have a monetary union(the taylor rule contains the weighted average of output and inflation of both countries), the following message appears:

***There are 19 eigenvalue(s) larger than 1 in modulus
for 20 forward-looking variable(s)

The rank conditions ISN’T verified!***

Someone can help me please, because i got stuck now? Here the mod file;
ib.mod (8.91 KB)

Please search the forum. There have recently been other users who had the same problem and were able to solve it.

Thanks! Jpeifer