系统防火墙设置端口时出错

请问，系统防火墙设置端口（39000-40000）时出现错误怎么整？
附出错信息：

抱歉，出错了：
Traceback (most recent call last):
File "class/flask_sockets.py", line 30, in __call__
handler, values = adapter.match()
File "/usr/local/lib/python3.6/site-packages/werkzeug/routing.py", line 1799, in match
raise NotFound()
werkzeug.exceptions.NotFound: 404 Not Found: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "class/panelPlugin.py", line 1898, in a
return eval(execStr)
File "", line 1, in
File "plugin/firewall/firewall_main.py", line 263, in modify_rules
if int(ports) == 22:
ValueError: invalid literal for int() with base 10: '39000-40000'