I have a HoA data

You don't.

You have a hash %HoA with one key (a stringified hash reference) and no value. Had you used warnings, perl had told you:

Reference found where even-sized list expected at ...
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You surely mean:

my %HoA= (
         1=>["ab",20090101,91010],
         2=>["cd",20090101,91010],
         3=>["ef",20090201,101000],
      ......
          
          
         );
[download]

That corrected, your sorting should work.