How do I keep external volume folders in the sidebar on macOS Monterey?

Hello, have on an external volume folders and had them in the sidebar. Recently it does not stay there, is alway on every restart away.

Monterey,

Promise P000001:

Verfügbar: 4,8 MB (4.751.360 Byte)

Kapazität: 6 TB (5.999.131.959.296 Byte)

Mount-Point: /Volumes/Promise P000001

Dateisystem: Journaled HFS+

Beschreibbar: Ja

ignore owner (Eigentümer ignorieren): Yes Ja

BSD-Name: disk6s2

UUID des Volumes: 682BD389-EAD2-319D-9D1A-594825609EAB

Physisches Laufwerk:

Device-name (Gerätename): Pegasus2 R4

Medienname: Promise Pegasus2 R4 Media

Protokoll: SAS

Intern: No (Nein)

Partitionstabellentyp: GPT (GUID-Partitionstabelle)

[Re-Titled by Moderator]