I have this error regularly beginning from 2018.04.22:18:14. I do not remove logs, so I have full history. Sometime I have other errors. My error history is the following:
error 719 - 5 times (the 1st of them was 2018.04.22:18:14)
error 999 - 1 time
error 719 - 1 time
error 719 and error 999 after 719 - 1 time
error 719 - 1 time
error 4 - 1 time
error 719 - 7 times
error 999 - 1 time
error 719 - 1 time (this one was 2018.05.11:15:24)
Also I had some restarts during this period w\o errors in log files.
All these errors in PM 2.9e. Before that I used 2.7c and 2.8c. And only one time I had only one error 999 in 2.7c. So looks like something wrong in 2.9e.
Hi PM developers. I have found the problem of 999 and 719 errors in my case. It was too big overclocking. I have decreased my MC from +670 to +650 and I forget about any errors during 10 days after this change. So it was not bug of PM. Moreover, my hashrate was decreased on 1 Mh/s, but I have better average mining result and w\o any restarts.