error with get_crypto_quotes

[pavelfedorov1]

library(coinmarketcapr)
key = "" #string I removed my actual key
coinmarketcapr::setup(key)
get_crypto_quotes(symbol=c("BTC"))

gives me:

Error in (function (..., row.names = NULL, check.rows = FALSE, check.names = TRUE, :
arguments imply differing number of rows: 1, 0