Dear all,
While I am executing my code I receive the error below

Error in sort.int(x, na.last = na.last, decreasing = decreasing, ...) : 
  'x' must be atomic


the weird thing that I am not calling anywhere sort function nor do I rely on anyh sorting.
How I can discover where this comes from (inside which function?).

I would like to thank you in advance for your help

B.R
Alex

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