login works (logout, then login does not)

...pp/src/main/java/com/example/schedulerapp/Controller.java

...p/src/main/java/com/example/schedulerapp/ScheduleApp.java

.../main/resources/com/example/schedulerapp/addEmployee.fxml

...ain/resources/com/example/schedulerapp/addShiftPopup.fxml

...main/resources/com/example/schedulerapp/editEmployee.fxml

...ain/resources/com/example/schedulerapp/headerManager.fxml

...pp/src/main/resources/com/example/schedulerapp/login.fxml

.../main/resources/com/example/schedulerapp/paystubView.fxml

...in/resources/com/example/schedulerapp/removeEmployee.fxml

...ces/com/example/schedulerapp/schedBottomPanelManager.fxml

...in/resources/com/example/schedulerapp/schedSidePanel.fxml

...urces/com/example/schedulerapp/staffManagerSidePanel.fxml

.../target/classes/com/example/schedulerapp/Controller.class

...target/classes/com/example/schedulerapp/ScheduleApp.class

.../target/classes/com/example/schedulerapp/addEmployee.fxml

...arget/classes/com/example/schedulerapp/addShiftPopup.fxml

...target/classes/com/example/schedulerapp/editEmployee.fxml

...arget/classes/com/example/schedulerapp/headerManager.fxml

...lerApp/target/classes/com/example/schedulerapp/login.fxml

.../target/classes/com/example/schedulerapp/paystubView.fxml