Unable to start the IS application after restart.

Please suggest on this ASAP

Attaching the error log:

2019-09-04 21:57:54 MDT [ISS.0025.0001C] Integration Server 8.2.2.0 Build 228
2019-09-04 21:57:56 MDT [ISS.0025.0006I] License Manager started
2019-09-04 21:58:06 MDT [ISS.0025.0049I] The JCE Unlimited Strength Jurisdiction Policy File was found
2019-09-04 21:58:06 MDT [ISS.0025.0041I] FIPS mode not initialized
2019-09-04 21:58:29 MDT [ISS.0094.0003C] RepositoryManager detected damaged data files : [BAF.0000.0007] Unable to open FSData devices
2019-09-04 21:58:29 MDT [ISS.0094.0004C] RepositoryManager Exception renaming damaged data files : [BAF.0000.0006] BlockDevice Exception: java.io.FileNotFondException: WmRepository4/RepoV4log0000000 (Permission denied)
2019-09-04 21:58:29 MDT [ISS.0025.0017I] Repository Manager started
2019-09-04 21:58:29 MDT [ISS.0096.0005C] JDBCConnectionManager: initialization failed with exception [BAR.0015.0511] Session: No default server specified
2019-09-04 21:58:29 MDT [ISS.0096.0001C] JDBCConnectionManager: initialization failed for All functional alias, check configuration.
2019-09-04 21:58:34 MDT [ISS.0095.0015W] Database at URI java:webmethods/jdbc/ProcessAudit is not available.
2019-09-04 21:58:34 MDT [ISS.0095.0018W] Cannot change destination of logger Process Logger to file system.
2019-09-04 21:58:34 MDT [ISS.0095.0019W] Disabling the logger Process Logger.
2019-09-04 21:58:34 MDT [ISS.0095.0015W] Database at URI java:webmethods/jdbc/ISCoreAudit is not available.
2019-09-04 21:58:34 MDT [ISS.0095.0018W] Cannot change destination of logger Document Logger to file system.
2019-09-04 21:58:34 MDT [ISS.0095.0019W] Disabling the logger Document Logger.
2019-09-04 21:58:34 MDT [ISS.0095.9998C] AuditLogManager Exception: java.lang.NullPointerException
java.lang.NullPointerException
at com.wm.app.b2b.server.AuditLogManager.ensureMinimumDBConnections(AuditLogManager.java:653)
at com.wm.app.b2b.server.AuditLogManager.init(AuditLogManager.java:518)
at com.wm.app.b2b.server.Server.initAuditLogManager(Server.java:840)
at com.wm.app.b2b.server.Server.run(Server.java:366)

2019-09-04 21:58:36 MDT [ISS.0014.0005I] Shutting down server. Shutting Down…

Hi Niharika,

looks like your config-folder got corrupted somehow.

Please copy the complete content of config/backup back to the config-folder itself and try to start again.
Additionally check for the permissions on the files in your installation directory.

Regards,
Holger