diff --git a/app/core/background/indexer_service.py b/app/core/background/indexer_service.py
index d0b942b..01c28ef 100644
--- a/app/core/background/indexer_service.py
+++ b/app/core/background/indexer_service.py
@@ -109,7 +109,8 @@ async def indexer_loop(memory, platform_found: bool, seqno: int) -> [bool, int]:
         make_log("Indexer", f"Last known index: {last_known_index}", level="debug")
         next_item_index = last_known_index + 1
 
-        resolve_item_result = await toncenter.run_get_method(platform.address.to_string(1, 1, 1), 'get_nft_address_by_index', [['num', hex(next_item_index)]])
+        resolve_item_result = await toncenter.run_get_method(platform.address.to_string(1, 1, 1), 'get_nft_address_by_index', [['num', next_item_index]])
+        make_log("Indexer", f"Resolve item result: {resolve_item_result}", level="debug")
         if resolve_item_result.get('exit_code', -1) != 0:
             make_log("Indexer", f"Resolve item error: {resolve_item_result}", level="error")
             return platform_found, seqno
@@ -117,6 +118,7 @@ async def indexer_loop(memory, platform_found: bool, seqno: int) -> [bool, int]:
         item_address_cell_b64 = resolve_item_result['stack'][0][1]["bytes"]
         item_address_slice = Cell.one_from_boc(b64decode(item_address_cell_b64)).begin_parse()
         item_address = item_address_slice.read_msg_addr()
+        make_log("Indexer", f"Item address: {item_address.to_string(1, 1, 1)}", level="debug")
 
         item_get_data_result = await toncenter.run_get_method(item_address.to_string(1, 1, 1), 'indexator_data')
         if item_get_data_result.get('exit_code', -1) != 0: