How to install plugins on Mac OS

Hi, I'm trying to install the RcmdrPlugin.TeachStat plugin on Mac. When I enter on the R comander and choose the option of "Load Rcmdr plugins..." and restart the comander i have this error on the console:
"Attaching package: 'Rcmdr'

The following object is masked from 'package:base':

errorCondition

Loading required package: RcmdrPlugin.TeachStat
Error: package or namespace load failed for 'RcmdrPlugin.TeachStat' in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
there is no package called 'tseries'
Error in structure(.External(.C_dotTclObjv, objv), class = "tclObj") :
[tcl] invalid command name "cget"."

Does anyone know how can i solve this or how to install this package? I have the lastests version; R-4.0.3.pkg

Thanks

Have you tried installing the missing dependency?

install.packages("tseries")

It worked!!! I had to install a lot of other packages but it finally worked. Thanks a lot!!!!