Database failed to start :DB closed with exit code 9009

WINDOWS 10, neo4j 3.5.8 .
my first install was very smooth, I was able to import files using load csv, and run all the commands as well. since I wanted to learn bulk import, I used windows powershell for execution of the same. I was, parallelly , using Paradise papers database, which was also running fine. often servers clashed between them, so i used powershell to stop server sometimes. I don' t know what happened, today, I see this[log file] in ICIJ database neo4j desktop. I tried reinstalling after removal of all files and folders related to neo4j on my laptop, that doesnt work either. my ICIJ stucks on the 3rd steps out of 4, throws this[attached ] error everytime. Also, my neo4j desktop is stuck here[attached] . I seek some guidance regarding this, I think this is an issue with my laptop only.

log file:-
[2019-08-08 16:32:42:0406] [warn] Analytics failed Error: unable to get local issuer certificate
at TLSSocket. (_tls_wrap.js:1088:38)
at emitNone (events.js:86:13)
at TLSSocket.emit (events.js:188:7)
at TLSSocket._finishInit (_tls_wrap.js:610:8)
at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:440:38)
[2019-08-08 16:38:50:0391] [warn] Analytics failed Error: unable to get local issuer certificate
at TLSSocket. (_tls_wrap.js:1088:38)
at emitNone (events.js:86:13)
at TLSSocket.emit (events.js:188:7)
at TLSSocket._finishInit (_tls_wrap.js:610:8)
at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:440:38)
[2019-08-08 16:38:50:0392] [warn] Analytics failed Error: unable to get local issuer certificate
at TLSSocket. (_tls_wrap.js:1088:38)
at emitNone (events.js:86:13)
at TLSSocket.emit (events.js:188:7)
at TLSSocket._finishInit (_tls_wrap.js:610:8)
at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:440:38)
[2019-08-08 16:39:42:0669] [error] DB database-005c158e-bd59-436a-ace7-c19fb9c55b6d closed with exit code 9009
[2019-08-08 16:39:42:0671] [error] DB database-005c158e-bd59-436a-ace7-c19fb9c55b6d closed with exit code 9009


Please help, I've tried everything available on this topic from various websites

thanks