plotstyle(..., plot = TRUE) is broken

[0UmfHxcvx5J7JoaOhFSs5mncnisTJJ6q]

entities <- c('AFR', 'AAA', 'AFR', 'UNKNOWN_ELEMENT2')
plotstyle(entities, plot = TRUE)

gives
Error: StatBin requires a continuous x variable: the x variable is discrete. Perhaps you want stat="count"?