--- STDERR ---
Traceback (most recent call last):
  File "/mnt/data/workspace_bt_repeat/proj/backtest_SK/backtester_core.py", line 92, in <module>
    main()
  File "/mnt/data/workspace_bt_repeat/proj/backtest_SK/backtester_core.py", line 24, in main
    dfs, all_times = load_cache(cfg["cache_db"])
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/data/workspace_bt_repeat/proj/backtest_SK/engine/data.py", line 22, in load_cache
    table = _detect_main_table(con)
            ^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/data/workspace_bt_repeat/proj/backtest_SK/engine/data.py", line 11, in _detect_main_table
    raise RuntimeError("No tables in cache DB")
RuntimeError: No tables in cache DB

--- DURATION_SEC=2.55 ---