bugfix (oopsie)

frontend/server/api/champions.ts

@@ -6,9 +6,11 @@ async function champions(client: MongoClient, patch: string) {
     const collection = database.collection(patch);
     const data : Array<ChampionData> = (await collection.find().toArray()) as unknown as Array<ChampionData>
     data.map((x) => {
-        for(let lane of x.lanes) {
-            delete lane.builds
-            delete lane.runes
+        if(x.lanes != undefined && x.lanes != null) {
+            for(let lane of x.lanes) {
+                delete lane.builds
+                delete lane.runes
+            }
         }
     })
     return data