同样的子流程，第一个运行报错，其他流程运行都不报错，请帮助解决

Traceback (most recent call last):
File "C:\Program Files\ShadowBot\shadowbot-5.2.33\python\lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "C:\Program Files\ShadowBot\shadowbot-5.2.33\python\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Program Files\ShadowBot\shadowbot-5.2.33\python\lib\site-packages\xbot_interpreter.py", line 67, in <module>
main()
File "C:\Program Files\ShadowBot\shadowbot-5.2.33\python\lib\site-packages\xbot_interpreter.py", line 47, in main
mod.main(args)
File "C:\Users\HP-LLC\AppData\Local\ShadowBot\users\2419b764-5b7b-4a57-b70f-f932d2373e83\apps\b862677c-345c-418a-a917-fe360a8acb13\xbot_robot\main.py", line 12, in main
], _block=("main", 2, "调用流程"))
File "<string>", line 79, in wrapper
File "<string>", line 74, in wrapper
File "<string>", line 82, in run
File "C:\Users\HP-LLC\AppData\Local\ShadowBot\users\2419b764-5b7b-4a57-b70f-f932d2373e83\apps\b862677c-345c-418a-a917-fe360a8acb13\xbot_robot\process9.py", line 27, in main
xbot_visual.excel.close(operation="close_specified", excel_instance=excel_instance2, close_way="save", filename=None, overwrite_file=True, close_process="office", task_kill=False, _block=("4_1_CF_YSGS", 19, "关闭Excel"))
File "<string>", line 79, in wrapper
File "<string>", line 74, in wrapper
File "<string>", line 112, in close
File "<string>", line 64, in save
File "<string>", line 93, in save_as
File "<COMObject Add>", line 7, in SaveAs
pywintypes.com_error: (-2147352567, '发生意外。', (0, 'Microsoft Excel', '类 Workbook 的 SaveAs 方法无效', 'xlmain11.chm', 0, -2146827284), None)