Error on restart mysql

[zloidemon]

I see at log file that error:

[2017-06-08 10:02:49] E Myslave: fatal error reading binlog. Binary log is not open
[2017-06-08 10:02:49] E Myslave: Error reading packet from server: Binary log is not open; mysql_error: 1236
[2017-06-08 10:02:49] E Myslave: fatal error reading binlog. Binary log is not open
[2017-06-08 10:02:49] E Error in reading binlogs: Slave::do_checksum_handshake(MYSQL* mysql): query 'SET @master_binlog_checksum= @@global.binlog_checksum' failed
[2017-06-08 10:02:49] E Terminating

SysOps said me - they did a few mysql restarts in the same time.