fix contract get methods

app/core/background/indexer_service.py

@@ -105,7 +105,7 @@ async def indexer_loop(memory, platform_found: bool, seqno: int) -> [bool, int]:
             StoredContent.onchain_index != None
         ).order_by(StoredContent.onchain_index.desc()).first()
         last_known_index = last_known_index.onchain_index if last_known_index else 0
-        last_known_index = max(last_known_index, 1)
+        last_known_index = max(last_known_index, 0)
         make_log("Indexer", f"Last known index: {last_known_index}", level="debug")
         next_item_index = last_known_index + 1