start
about 1-10 hours all are ok
and then

[2019-07-03 18:02:41] JOB error: Last and current jobs have same job_id
[2019-07-03 18:02:41] Reconnecting to pool.hashvault.pro:3333 in 15 seconds
[2019-07-03 18:02:56] Connected to pool.hashvault.pro:3333
[2019-07-03 18:02:56] Pool difficulty: 20000
[2019-07-03 18:02:56] Job received, block height 1870497 [ID: b89226cb-e47f-4285-80ca-bbb357dc1454]
[2019-07-03 18:02:58] JOB error: Last and current jobs have same job_id

and again, and again...

What's that?