Errors plotting after installing mpld3

I saw a notification from PyCharm prompting to install mpld3 for interactive plots and I accepted it.

Since then, my plots that previously worked are now failing. I have noticed that for very simple plots, such as

import matplotlib.pyplot as plt
x = [1, 2, 3]
y = [1, 2, 3]
plt.plot(x, y)
plt.show()

work fine, but when trying to use my actual datasets I get an error. How can I solve this issue? Either to plot my actual datasets, or to return to the previous behavior static plots in the plot toolbar?

I found that if I use matplotlib.use('qtagg') then the plot using my data also works fine, which makes me thing this is a PyCharm issue.

The error I get:

Error: failed to send plot to http://127.0.0.1:63342
Traceback (most recent call last):
 File "C:\Users\jakub\AppData\Local\Programs\PyCharm Professional\plugins\python\helpers\pycharm_display\datalore\display\display_.py", line 86, in _send_display_message
   urllib_request.urlopen(url, buffer)
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 216, in urlopen
   return opener.open(url, data, timeout)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 519, in open
   response = self._open(req, data)
              ^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 536, in _open
   result = self._call_chain(self.handle_open, protocol, protocol +
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 496, in _call_chain
   result = func(*args)
            ^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 1377, in http_open
   return self.do_open(http.client.HTTPConnection, req)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 1352, in do_open
   r = h.getresponse()
       ^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\http\client.py", line 1378, in getresponse
   response.begin()
 File "C:\Users\jakub\anaconda3\Lib\http\client.py", line 318, in begin
   version, status, reason = self._read_status()
                             ^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\http\client.py", line 279, in _read_status
   line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\socket.py", line 706, in readinto
   return self._sock.recv_into(b)
          ^^^^^^^^^^^^^^^^^^^^^^^
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
 File "C:\Users\jakub\AppData\Local\Programs\PyCharm Professional\plugins\python\helpers\pycharm_display\datalore\display\display_.py", line 61, in try_empty_proxy
   urllib_request.urlopen(url, buffer)
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 216, in urlopen
   return opener.open(url, data, timeout)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 519, in open
   response = self._open(req, data)
              ^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 536, in _open
   result = self._call_chain(self.handle_open, protocol, protocol +
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 496, in _call_chain
   result = func(*args)
            ^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 1377, in http_open
   return self.do_open(http.client.HTTPConnection, req)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\urllib\request.py", line 1352, in do_open
   r = h.getresponse()
       ^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\http\client.py", line 1378, in getresponse
   response.begin()
 File "C:\Users\jakub\anaconda3\Lib\http\client.py", line 318, in begin
   version, status, reason = self._read_status()
                             ^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\http\client.py", line 279, in _read_status
   line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\jakub\anaconda3\Lib\socket.py", line 706, in readinto
   return self._sock.recv_into(b)
          ^^^^^^^^^^^^^^^^^^^^^^^
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine