Error after installation brms

When I upload a package, I receive these warnings and error messages

library(brms)
Warning: package ‘brms’ was built under R version 4.1.3Warning: replacing previous import ‘ggplot2::vars’ by ‘dplyr::vars’ when loading ‘bayesplot’Registered S3 method overwritten by 'htmlwidgets':
  method           from         
  print.htmlwidget tools:rstudio
Warning: replacing previous import ‘bayesplot::vars’ by ‘ggplot2::vars’ when loading ‘shinystan’Loading 'brms' package (version 2.17.0). Useful instructions
can be found by typing help('brms'). A more detailed introduction
to the package is available through vignette('brms_overview').

Attaching package: ‘brms’

The following object is masked _by_ ‘.GlobalEnv’:

    loss

The following objects are masked from ‘package:rethinking’:

    LOO, stancode, WAIC

The following object is masked from ‘package:rstan’:

    loo

The following object is masked from ‘package:stats’:

    ar

There are no error messages in that output, so nothing to be concerned about