Fess Exception log

Hi ,
We are getting below exception in FEss , Can you please provide some solution to fix it .


Caused by: org.codelibs.fesen.FesenStatusException: Fesen exception [type=cluster_block_exception, reason=index [fess.20220204] blocked by: [TOO_MANY_REQUESTS/12/disk usage exceeded flood-stage watermark, index has read-only-allow-delete block];]

It seems that Elasticsearch does not have enough disk space.
Please see Index blocks. To remove the blocking flag,

curl -X PUT "localhost:9200/fess.20220204/_settings" -H 'Content-Type: application/json' -d'
  "index.blocks.read_only_allow_delete": null