Package check result: ERROR

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Chen Peng <bfzede@gmail.com>’
  
  New maintainer:
    Chen Peng <bfzede@gmail.com>
  Old maintainer(s):
    Chen Peng <pengchen2001@zju.edu.cn>

Check: examples, Result: ERROR
  Running examples in ‘pctax-Ex.R’ failed
  The error most likely occurred in:
  
  > base::assign(".ptime", proc.time(), pos = "CheckExEnv")
  > ### Name: ALDEX
  > ### Title: ALDEX
  > ### Aliases: ALDEX
  > 
  > ### ** Examples
  > 
  > ## No test: 
  > if (requireNamespace("ALDEx2")) {
  +   data(otutab, package = "pcutils")
  +   ALDEX(otutab, metadata["Group"]) -> res
  +   res %>%
  +     dplyr::top_n(9, -glm.eBH) %>%
  +     .[, "tax"] -> sig
  +   data.frame(t(otutab[sig, ])) %>% pcutils::group_box(., "Group", metadata)
  + }
  Loading required namespace: ALDEx2
  aldex.clr: generating Monte-Carlo instances and clr values
  Error in Math.factor(c(1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L,  : 
    ‘round’ not meaningful for factors
  Calls: ALDEX ... aldex.clr -> aldex.clr -> aldex.clr.function -> Math.factor
  Execution halted