runner bugfix

src/dexorder/runner.py

@@ -402,6 +402,7 @@ class BlockStateRunner:
                 self.state.delete_block(block.hash)
             if config.parallel_logevent_queries:
                 for get_logs, *_ in batches:
+                    if get_logs is not None:
                         # noinspection PyBroadException
                         try:
                             await get_logs