RedMGuideGrant yourself VORP admin: the group column in your database, applied with a small SQL file.
The web panel (txAdmin) and the in-game admin tools are two different systems. VORP keeps admin in your server's database.
VORP's own documentation says admin lives in the database: the group column must say admin in both the users and characters tables. On Haptic you can apply that without a database program: drop a small .sql file into server-data/sql/ and restart (see Import SQL files). Message us on Discord and we will help you write the exact lines for your account.
VORP's admin menu (vorp_admin) also ships example permission lines in server.cfg and vorp_perms.cfg; admins with permissions can then manage others in game with /addGroup [id] [group].
RSGCore follows the same permission pattern QBCore uses on FiveM (ACE lines in your server.cfg); the exact permission names come from RSGCore's own documentation.
Open txAdmin from your server page, click your player in the Players list while connected, and copy the identifier value.