Data Access :: Error On Restore Database From Prod To Reporting Server

I'm having an issue to restoring database from prod to report server. I'm getting following error.

When I did Manually I got first error as below.

Msg 233, Level 20, State 0, Line 0 A transport-level error has occurred when sending the request to the server. (provider: Shared Memory Provider, error: 0 - No process is on the other end of the pipe.)

This is the second error

Msg 3044, Level 16, State 1, Line 37
Invalid zero-length device name. Reissue thestatement with a valid device name.
Msg 3013, Level 16, State 1, Line 37
RESTORE DATABASE is terminating abnormally.
Msg 5011, Level 14, State 5, Line 45
User does not have permission to alter database 'XeP', the database does not exist, or the database is not in a state that allows access checks.
Msg 5069, Level 16, State 1, Line 45
ALTER DATABASE statement failed.

Script Which I used.

USE Master;
GO 
SET NOCOUNT ON

-- 1 - Variable declaration
DECLARE @dbName sysname
DECLARE @backupPath NVARCHAR(500)

[Code] .....