Error appeared - HELP please

What should I do? Thanks a lot

Error
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Anki 2.1.33 (3f403040) Python 3.8.0 Qt 5.14.1 PyQt 5.14.1
Platform: Windows 10
Flags: frz=True ao=False sv=1
Add-ons, last update check: 2021-01-21 09:29:13

Exception while serving /_anki/webview.css
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception while serving /_anki/toolbar.css
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception while serving /_anki/webview.js
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception while serving /_anki/toolbar-bottom.css
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception when servicing <waitress.channel.HTTPChannel connected 127.0.0.1:55290 at 0x18da590d8e0>
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “waitress\task.py”, line 86, in handler_thread
File “waitress\channel.py”, line 381, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 364, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception when servicing <waitress.channel.HTTPChannel connected 127.0.0.1:55289 at 0x18da590d850>
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “waitress\task.py”, line 86, in handler_thread
File “waitress\channel.py”, line 381, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 364, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception when servicing <waitress.channel.HTTPChannel connected 127.0.0.1:55291 at 0x18da590da00>
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “waitress\task.py”, line 86, in handler_thread
File “waitress\channel.py”, line 381, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 364, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception when servicing <waitress.channel.HTTPChannel connected 127.0.0.1:55288 at 0x18da58f0e20>
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “waitress\task.py”, line 86, in handler_thread
File “waitress\channel.py”, line 381, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 364, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception while serving /_anki/jquery.js
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception while serving /_anki/webview.css
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception when servicing <waitress.channel.HTTPChannel connected 127.0.0.1:55292 at 0x18da590deb0>
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “waitress\task.py”, line 86, in handler_thread
File “waitress\channel.py”, line 381, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 364, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist
Exception when servicing <waitress.channel.HTTPChannel connected 127.0.0.1:55293 at 0x18da5917ac0>
Traceback (most recent call last):
File “waitress\channel.py”, line 350, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 453, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “waitress\task.py”, line 86, in handler_thread
File “waitress\channel.py”, line 381, in service
File “waitress\task.py”, line 171, in service
File “waitress\task.py”, line 364, in execute
File “waitress\task.py”, line 312, in write
File “waitress\channel.py”, line 325, in write_soon
File “waitress\server.py”, line 338, in pull_trigger
File “waitress\trigger.py”, line 96, in pull_trigger
File “waitress\trigger.py”, line 203, in _physical_pull
OSError: [WinError 10038] Ein Vorgang bezog sich auf ein Objekt, das kein Socket ist

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