Neo4j db 4.1.3 is not starting due to system db file missing

Hello there I am using neo4j 4.1.3 in my amazon instance. I was going to bulk import in my db but somehow could not imported it . I restarted my neo4j db. but after loading all the data base is not started . I have got bellow exception in my debug.log file

Starting 'system' database.
2020-10-10 14:39:22.946+0000 INFO [o.n.k.i.s.f.RecordFormatSelector] [system] Selected format 'RecordFormat:StandardV4_0[SF4.0.0]' for the new store /var/lib/neo4j/data/databases/system
2020-10-10 14:39:22.992+0000 WARN [o.n.k.d.Database] [system] Exception occurred while starting the database. Trying to stop already started components. Fail to start database 'system' since transaction logs were found, while database files are missing.
java.lang.RuntimeException: Fail to start database 'system' since transaction logs were found, while database files are missing.
at org.neo4j.kernel.database.Database.validateLogsAndStoreAbsence(Database.java:525)
at org.neo4j.kernel.database.Database.validateStoreAndTxLogs(Database.java:517)
at org.neo4j.kernel.database.Database.start(Database.java:386)
at org.neo4j.dbms.database.AbstractDatabaseManager.startDatabase(AbstractDatabaseManager.java:187)
at org.neo4j.dbms.database.DefaultDatabaseManager.startDatabase(DefaultDatabaseManager.java:132)
at org.neo4j.dbms.database.DefaultDatabaseManager.startDatabase(DefaultDatabaseManager.java:36)
at org.neo4j.dbms.database.AbstractDatabaseManager.forEachDatabase(AbstractDatabaseManager.java:165)

how could I fix it. before that it was working

Hi there, this could be an issue with a recent update. Have you tried uninstalling and reinstalling Neo4j?

yeh i reinstalled it . it worked