Elasticsearch WARN : Failed to update shard information for ClusterInfoUpdateJob within 15s timeout

Hi every one,
i am running elasticsearch 7.10 on windows server 2016. elasticsearch installed as a service and worked well. but in elastic logs i see this warnings:

[2021-02-23T13:12:06,472][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout
[2021-02-23T13:15:39,833][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout
[2021-02-23T13:18:25,141][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout
[2021-02-23T13:22:09,211][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout
[2021-02-23T13:29:56,011][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout
[2021-02-23T13:31:56,125][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout
[2021-02-23T13:38:43,211][WARN ][o.e.c.InternalClusterInfoService] [node-1] Failed to update shard information for ClusterInfoUpdateJob within 15s timeout

es heap size is 6 GB and Here is the information :

{
  "cluster_name" : "one-node-cluster",
  "status" : "yellow",
  "timed_out" : false,
  "number_of_nodes" : 1,
  "number_of_data_nodes" : 1,
  "active_primary_shards" : 126,
  "active_shards" : 126,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 55,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue" : "0s",
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent" : "69.6%",
  "active_shards_percent_as_number" : 69.61325966850829
}

do you have any idea about this warning?! Thanks in advance.