I dont able to take OP manager 8 backup

I dont able to take OP manager 8 backup

Hey, 

I am using OP manager 8 and i dont able to backup of my data using mention bellow steps.
Start menu -> Programs ->OP Manager -> Data Maintenance -> Backup.

An error is come and log is generated in backup folder, I am attaching this log so kindly look into it and do the needful.

Regards,

Arshad Khan 

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