Hey everyone,

I run this model (I know it is not significant whatsoever)
I want to test for random or fixed effects by using -xtoverid- (because I cannot use the hausman test due to pre-testing) but I am getting a strange error and cannot find anything about it online.

Code:
        local controls "fs ihs_lev itq rdi growth cap_exp"
   
        xtreg ln_tq cvcie1 `controls' i.fyear, re vce(cluster gvkey)
        xtoverid

Code:
.                  local controls "fs ihs_lev itq rdi growth cap_exp"

.                 xtreg ln_tq cvcie1 `controls' i.fyear, re vce(cluster gvkey)

Random-effects GLS regression                   Number of obs     =        353
Group variable: gvkey                           Number of groups  =         34

R-squared:                                      Obs per group:
     Within  = 0.4495                                         min =          2
     Between = 0.7981                                         avg =       10.4
     Overall = 0.7672                                         max =         11

                                                Wald chi2(17)     =     213.32
corr(u_i, X) = 0 (assumed)                      Prob > chi2       =     0.0000

                                 (Std. err. adjusted for 34 clusters in gvkey)
------------------------------------------------------------------------------
             |               Robust
       ln_tq | Coefficient  std. err.      z    P>|z|     [95% conf. interval]
-------------+----------------------------------------------------------------
      cvcie1 |   5.52e-11   8.34e-10     0.07   0.947    -1.58e-09    1.69e-09
          fs |  -.1613904   .0365898    -4.41   0.000    -.2331051   -.0896756
     ihs_lev |   .0580024   .0411137     1.41   0.158    -.0225791    .1385838
         itq |   .3398229   .0558942     6.08   0.000     .2302723    .4493734
         rdi |   1.036217    .773744     1.34   0.180    -.4802935    2.552727
      growth |   .1198598   .0817974     1.47   0.143    -.0404601    .2801797
     cap_exp |   .5984217   .5286162     1.13   0.258    -.4376469     1.63449
             |
       fyear |
       2010  |  -.0306953   .0298935    -1.03   0.305    -.0892854    .0278948
       2011  |   -.077236   .0307453    -2.51   0.012    -.1374957   -.0169762
       2012  |  -.0814748   .0336291    -2.42   0.015    -.1473866   -.0155629
       2013  |   .0194988   .0339792     0.57   0.566    -.0470993    .0860969
       2014  |   .0458808   .0401516     1.14   0.253    -.0328149    .1245765
       2015  |   .0266745   .0443086     0.60   0.547    -.0601688    .1135178
       2016  |   .0975874   .0522047     1.87   0.062     -.004732    .1999068
       2017  |   .0892597   .0649787     1.37   0.170    -.0380963    .2166157
       2018  |   .0076378    .066033     0.12   0.908    -.1217844    .1370601
       2019  |   .0725756   .0702437     1.03   0.302    -.0650995    .2102506
             |
       _cons |   1.253751   .4625044     2.71   0.007     .3472587    2.160243
-------------+----------------------------------------------------------------
     sigma_u |  .30729789
     sigma_e |  .16356735
         rho |  .77923012   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.                 xtoverid
2009b:  operator invalid
r(198);
Can someone help me please
Did I do something wrong?

Kind regards,
Jana