Traceback (most recent call last):
  File "backtester_core_v1.py", line 321, in <module>
    main()
  File "backtester_core_v1.py", line 284, in main
    pf = run_backtest(cache_db=cfg["cache_db"],
  File "backtester_core_v1.py", line 161, in run_backtest
    dfs, all_times = load_cache(path)
  File "/var/www/vps2.happyuser.info/top/top_1/obw_platform/engine/data.py", line 24, in load_cache
    raise RuntimeError("No tables in cache DB")
RuntimeError: No tables in cache DB