The "Banner Admin" icon is missing from your toolbar in Raiderlink. This icon should appear for anyone who can sign in and work within Banner Admin.
Contact IT Help Central. IT Help Central will assign a request in your name to system administrators.
System administrators will research the situation and provide additional information to IT Help Central regarding why your Banner Admin button is missing.
You may browse directly to https://banneradmin.texastech.edu as an alternative to going through Raiderlink.