Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
@StephanieAnderson1 It looks like your Unit Advancement Chair and Troop Admin roles were ended in Scoutbook.
If you are the troop’s Advancement Chair, you will need another Troop Admin to add you back.
Even better, ask one of the troop’s Key 3 (or a Key 3 Delegate) to grant you the Unit Advancement Chair functional role at my.Scouting. They would go to the Roster at my.Scouting, use the Position Manager, and then click on the Functional Roles tab.