每次命令加上effects，就会出现如图的这种红色的错误，不加effects就会出来基本的结果。有没有解决方案呢？问题出在哪里呢？拜托各位知道的解答
命令和报错信息如下

. xsmle  lni2 lnic lnic2 lninvest lnloan lncountry  lnafe lnaland lnaex  education, re model(sdm) wmat(W)  dmat(W)  nolog effects

Warning: All regressors will be spatially lagged
convergence not achieved
Warning: e(V) matrix is not positive definite.
         Spatial effects Std. Err. will be computed using a modified
         positive definite matrix (Rebonato and Jackel, 2000).
Computing marginal effects standard errors using MC simulation...
        _xsmle_effects():  3001  expected 4 to 6 arguments but received 10
                 <istmt>:     -  function returned error