Python报错：fake_useragent 只通过一次,后面运行的都报错了,问下哪出错了?

这是原码:

from fake_useragent import UserAgent  # 导入伪造头部信息的模块
for i in range(5):
    # 打印随机生成浏览器头部信息
    print({"User-Agent": UserAgent().random})

这是报错:
Error occurred during loading data. Trying to use cache server https://fake-useragent.herokuapp.com/browsers/0.1.11
Traceback (most recent call last):
File "D:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\urllib\request.py", line 1350, in do_open
h.request(req.get_method(), req.selector, req.data, headers,
File "D:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1255, in request
self._send_request(method, url, body, headers, encode_chunked)
File "D:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1301, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "D:\Users\Administrator\AppData\Local\Programs\Python\Python38\lib\http\client.py", line 1250, in endheaders