Critical : Error while invoking backup

I got an error when trying to backup to network location (mapped drive). See if anyone can give me some hints. Thanks.

Error below:
Unable to take the backup of ServiceDesk Plus, So please contact your database Administrator [OR]
product support for further assistance to fix the below error and forward this E-Mail, support file(s) and SDPbackup.log file from bin folder to servicedeskplus-support@manageengine.com

java.io.IOException: The system cannot find the path specified at java.io.WinNTFileSystem.createFileExclusively(Native Method) at java.io.File.createNewFile(Unknown Source) at com.adventnet.servicedesk.tools.SDBackUp.createBuildInfoXml(SDBackUp.java:2108) at com.adventnet.servicedesk.tools.SDBackUp.initBackup(SDBackUp.java:257) at com.adventnet.servicedesk.tools.SDBackUp.process(SDBackUp.java:105) at com.adventnet.servicedesk.setup.task.ScheduledBackupTask.executeTask(ScheduledBackupTask.java:97) at com.adventnet.workengine.task.internal.TaskManagerImpl.executeTask(TaskManagerImpl.java:706) at com.adventnet.workengine.executor.internal.WorkFlowExecutor.executeStartingTask(WorkFlowExecutor.java:160) at com.adventnet.workengine.executor.internal.WorkFlowExecutor.executeWorkFlowTemplate(WorkFlowExecutor.java:115) at com.adventnet.workengine.executor.internal.WorkFlowExecutor.executeWorkFlow(WorkFlowExecutor.java:105) at com.adventnet.workengine.executor.internal.LocalWorkFlowExecutionHandler.execute(LocalWorkFlowExecutionHandler.java:67) at com.adventnet.workengine.internal.WorkEngineImpl$WorkFlowExecutorThread.run(WorkEngineImpl.java:933) at com.adventnet.workengine.service.ThreadPoolService$WorkerThread.run(ThreadPoolService.java:256) at java.lang.Thread.run(Unknown Source)

Please contact your DBA to update the following sql query

update Task_Input SET OPERATIONAL_STATUS = 4 where SCHEDULE_ID = (select SCHEDULE_ID from schedule where SCHEDULE_NAME = 'BackupSchedule')

This sql query will stop your backup scheduling
============================

SDP 9321
PSQL