Problem with geom_text_repel

Hello everyone! I'm beginner in R.
Today, I wanted to make a plot of pubs in UK, but it always gives me mistake in aesthetics...
My goal is to make this:

where 40 or 50 most frequent names of pubs in the UK: the x-axis is for the number of symbols in the pub name, the y-axis is for the number of bars with the same name.
I made this as variables:

bars <- read_csv("")
pubs <- count(bars, pub_name, sort = TRUE) 
pubs_sl <- slice(pubs, n = 1:40)
pub_len <- pubs_sl %>% 
  mutate(n_charactars = str_count(pub_name))

But I cant integrate them in the plot without a mistake in aesthetics . Can you tell me why I have this mistake with this variables?

Thank you for your answers!

This works for me:

       aes(x = n_charactars, y = n)) +
  geom_point() +
  ggrepel::geom_text_repel(aes(label = pub_name))

I do get a warning:

Warning message:
ggrepel: 13 unlabeled data points (too many overlaps). Consider increasing max.overlaps 

But that doesn't prevent successful plotting (it's a warning, not an error). It's just telling me that there are too many names overlapping so it can't write all the names. I can force writing all the labels either by increasing plot size or by changing max.overlaps (but that makes the plot hard to read):

       aes(x = n_charactars, y = n)) +
  geom_point() +
  ggrepel::geom_text_repel(aes(label = pub_name), max.overlaps = Inf)

If it's a different error message that you have, you'll need to share your code and the exact error message so that we can help.

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