try to fix

app.py

@@ -93,12 +93,23 @@ def init_leaderboard(dataframe):
     column_to_type = {c.name: c.type for c in team_columns}
     datatypes = [column_to_type.get(col, "str") for col in dataframe.columns]
 
-    default_selection = [c.name for c in team_columns if getattr(c, "displayed_by_default", False) and c.name]
-    cant_deselect = [c.name for c in team_columns if getattr(c, "never_hidden", False) and c.name]
-    hide_cols = [c.name for c in team_columns if getattr(c, "hidden", False) and c.name]
-    search_cols = (
-        [TeamColumn.team_name.name] if hasattr(TeamColumn.team_name, "name") and TeamColumn.team_name.name else []
-    )
+    default_selection = [
+        c.name
+        for c in team_columns
+        if getattr(c, "displayed_by_default", False) and c.name and c.name in dataframe.columns
+    ]
+    cant_deselect = [
+        c.name for c in team_columns if getattr(c, "never_hidden", False) and c.name and c.name in dataframe.columns
+    ]
+    hide_cols = [
+        c.name for c in team_columns if getattr(c, "hidden", False) and c.name and c.name in dataframe.columns
+    ]
+
+    search_cols = []
+    if hasattr(TeamColumn, "team_name") and hasattr(TeamColumn.team_name, "name"):
+        search_col_name = TeamColumn.team_name.name
+        if search_col_name and search_col_name in dataframe.columns:
+            search_cols = [search_col_name]
 
     return Leaderboard(
         value=dataframe,