cannot create disk MSDP for NetBackup 7.7

Hi All,

I want to create disk MSDP from NetBackup 7.7 but error "netbackup login credentials verification failed for server"

and I try to deleted configure > run script "PDDE_deleteConfig.bat" but have error "the system was unable to find the specified registry key or value."

I don't know how to resolve this issue.

thank you in advance.