ndb error

Time: Tuesday 13 February 2018 - 11:04:13
Status: Temporary error, restart node
Message: WatchDog terminate, internal error or massive overload on the machine running this node (Internal error, programming error or missing error message, please report a bug)
Error: 6050
Error data: Job Handling
Error object: g:\ade\build\sb_0-22875044-1490680417.82\mysql-cluster-gpl-7.5.6\storage\ndb\src\kernel\vm\watchdog.cpp
Program: c:\mysql\bin\ndbd.exe
Pid: 5520
Version: mysql-5.7.18 ndb-7.5.6
Trace file name: ndb_6_trace.log.2
Trace file path: C:/MySQL/Node/DataNode\ndb_6_trace.log.2 [t1..t1]
***EOM***

Time: Tuesday 13 February 2018 - 11:04:15
Status: Temporary error, restart node
Message: Node lost connection to other nodes and can not form a unpartitioned cluster, please investigate if there are error(s) on other node(s) (Arbitration error)
Error: 2305
Error data: Arbitrator decided to shutdown this node
Error object: QMGR (Line: 6261) 0x00000002
Program: c:\mysql\bin\ndbd.exe
Pid: 5520
Version: mysql-5.7.18 ndb-7.5.6
Trace file name: ndb_6_trace.log.8
Trace file path: C:/MySQL/Node/DataNode\ndb_6_trace.log.8 [t1..t1]
***EOM***