ERROR: 300 or more distinct discrete states found

Help and Getting Started
1

I am currently analyzing SARS-CoV-2 with a focus on Malaysia and encountering the following error:

augur traits is using TreeTime version 0.8.5
ERROR: 300 or more distinct discrete states found. TreeTime is currently not set up to handle that many states.
[Wed Nov  1 03:28:48 2023]
Error in rule traits:
    jobid: 31
    output: results/Myanmar/traits.json
    log: logs/traits_Myanmar.txt (check log file(s) for error message)
    shell:
        
        augur traits             --tree results/Myanmar/tree.nwk             --metadata results/Myanmar/metadata_adjusted.tsv.xz             --output results/Myanmar/traits.json             --columns division             --confidence             --sampling-bias-correction 2.5 2>&1 | tee logs/traits_Myanmar.txt
        
        (one of the commands exited with non-zero exit code; note that snakemake uses bash strict mode!)
Logfile logs/traits_Myanmar.txt:
augur traits is using TreeTime version 0.8.5
ERROR: 300 or more distinct discrete states found. TreeTime is currently not set up to handle that many states.


tree frequencies written to results/Myanmar/tip-frequencies.json
[Wed Nov  1 03:28:54 2023]
Finished job 33.
23 of 37 steps (62%) done
WARNING: supplied genes don't match the annotation
the following features are in the annotation by not supplied as genes: {'nuc'}
the following features are in the supplied as genes but not the annotation: set()

0.00    -TreeAnc: set-up

28.61   -SequenceData: loaded alignment.

28.62   -SeqData: making compressed alignment...

Here is my build:

builds:

  Myanmar:
    subsampling_scheme: switzerland 
    region: Asia
    country: Myanmar

    colors: "my_profiles/Myanmar/colors.tsv"
  
subsampling:
  switzerland:
    country:
      group_by: "division year month"
      max_sequences: 15000
      exclude: "--exclude-where 'country!={country}'"
    region:
      group_by: "country year month"
      seq_per_group: 40
      exclude: "--exclude-where 'country={country}' 'region!={region}'"
      priorities:
        type: "proximity"
        focus: "country"
    global:
      group_by: "country year month"
      seq_per_group: 10
      exclude: "--exclude-where 'region={region}'"
      priorities:
        type: "proximity"
        focus: "country"

  
      
files:
  colors: "my_profiles/Myanmar/colors.tsv"
traits:
  Myanmar:
    columns: ["division"]

I found a similar post but could not resolve it.
Can someone comment on what I am doing wrong here?