I hope everyone is fine and healthy and far from Covid-19 problem.

I have an equilibrium problem, very simple and very basic.

It contains 3 generators that are supposed to supply a deterministic load (200 MW).

single-bus power balance, and maximum power are the only constraints. the objective is to maximize social welfare.

I don't receive any normal error message but :

*** JAMS Equation 1 ( =E= / flipped ) with matching lower bounded variable 4 not allowed"

***

*** JAMS Pre processing failed

The program is attached and I appreciate it if you could have a look at it and guide me. Thanks a lot"