bref_players_stats() not working prior to 2016-17

[pddiii]

I tried running the following code and got a ridiculous amount of errors and warnings. I cannot pull data from any years prior to the 2016-17 season for some reason, and I'm not sure what the problem is

> bref_players_stats(seasons = 2001:2005)
Error in `mutate()`:
ℹ In argument: `yearSeason = slugSeason %>% substr(1, 4) %>% as.numeric() + 1`.
Caused by error in `substr()`:
! object 'slugSeason' not found
Run `rlang::last_trace()` to see where the error occurred.
Warning messages:
1: In for (t in seq_along(app$themes)) { :
  closing unused connection 13 (http://www.basketball-reference.com/leagues/NBA_2005_totals.html)
2: In for (t in seq_along(app$themes)) { :
  closing unused connection 12 (http://www.basketball-reference.com/leagues/NBA_2004_totals.html)
3: In for (t in seq_along(app$themes)) { :
  closing unused connection 10 (http://www.basketball-reference.com/leagues/NBA_2003_totals.html)
4: In for (t in seq_along(app$themes)) { :
  closing unused connection 9 (http://www.basketball-reference.com/leagues/NBA_2002_totals.html)
5: In for (t in seq_along(app$themes)) { :
  closing unused connection 8 (http://www.basketball-reference.com/leagues/NBA_2001_totals.html)
6: In for (t in seq_along(app$themes)) { :
  closing unused connection 7 (http://www.basketball-reference.com/leagues/NBA_2005_advanced.html)
7: In for (t in seq_along(app$themes)) { :
  closing unused connection 6 (http://www.basketball-reference.com/leagues/NBA_2004_advanced.html)
8: In for (t in seq_along(app$themes)) { :
  closing unused connection 5 (http://www.basketball-reference.com/leagues/NBA_2003_advanced.html)
9: In for (t in seq_along(app$themes)) { :
  closing unused connection 4 (http://www.basketball-reference.com/leagues/NBA_2002_advanced.html)
10: In for (t in seq_along(app$themes)) { :
  closing unused connection 3 (http://www.basketball-reference.com/leagues/NBA_2001_advanced.html)