Strange old events in consul logs

Hi!

Some time ago I found strange records in consul logs:

2020/06/17 09:03:48 [WARN] serf: received old event consul:new-leader from time 249 (current: 47540)
2020/06/17 09:03:48 [WARN] serf: received old event consul:event:_rexec from time 250 (current: 47540)
2020/06/17 09:03:48 [WARN] serf: received old event consul:event:_rexec from time 251 (current: 47540)

It seems these events exist for several months.
Is it bad? How can I fix it?

Thanks.

consul info

agent:
check_monitors = 0
check_ttls = 0
checks = 1
services = 1
build:
prerelease =
revision = f2b13f30
version = 1.3.1
consul:
bootstrap = false
known_datacenters = 1
leader = false
leader_addr = 10.0.65.25:8300
server = true
raft:
applied_index = 888517164
commit_index = 888517164
fsm_pending = 0
last_contact = 28.533┬Ás
last_log_index = 888517166
last_log_term = 20227
last_snapshot_index = 888515009
last_snapshot_term = 20227
latest_configuration = [{Suffrage:Voter ID:6f2383e0-e91a-8d18-b6b1-7ac5be018b59 Address:10.0.65.25:8300} {Suffrage:Voter ID:91f17ebd-c995-548f-8e25-0d5ab4a7cb11 Address:10.0.65.23:8300} {Suffrage:Voter ID:54629e76-7d30-2f48-b581-be533ac34b74 Address:10.0.65.24:8300}]
latest_configuration_index = 839956344
num_peers = 2
protocol_version = 3
protocol_version_max = 3
protocol_version_min = 0
snapshot_version_max = 1
snapshot_version_min = 0
state = Follower
term = 20227
runtime:
arch = amd64
cpu_count = 8
goroutines = 6538
max_procs = 8
os = linux
version = go1.11.1
serf_lan:
coordinate_resets = 0
encrypted = false
event_queue = 0
event_time = 47540
failed = 0
health_score = 0
intent_queue = 0
left = 3
member_time = 15803
members = 423
query_queue = 0
query_time = 177
serf_wan:
coordinate_resets = 0
encrypted = false
event_queue = 0
event_time = 1
failed = 0
health_score = 0
intent_queue = 0
left = 0
member_time = 157
members = 3
query_queue = 0
query_time = 1