Error waring, what does this means?

dear all~
sorry to bother,but im new to dynare and I encountered a problem when tring to write a mod file corresponding to the paper written by Ireland(2003).
when i run the mod file using dynare 4.2.0, this error warning always comes out and i don’t understand what this means. i hvae attached my mod file…

Configuring Dynare …
[mex] Generalized QZ.
[mex] Sylvester equation solution.
[mex] Kronecker products.
[mex] Sparse kronecker products.
[mex] Bytecode evaluation.
[mex] k-order perturbation solver.
[mex] k-order solution simulation.

Starting Dynare (version 4.2.0).
Starting preprocessing of the model file …
ERROR: test.mod:16.9-14: syntax error, unexpected FLOAT_NUMBER, expecting ‘’

??? Error using ==> dynare at 126
DYNARE: preprocessing failed
test.mod (801 Bytes)

sigma_e is a reserved (though deprecated) keyword. You should change this variable name.