Error in desktop

Hi. I’ve been using anki for weeks. And lately I had trouble when I opened anki.
I saw the Error every time I started anki. How can I fix it?


Debug info:
Anki 2.1.26 (70784154) Python 3.8.0 Qt 5.14.1 PyQt 5.14.1
Platform: Windows 10
Flags: frz=True ao=True sv=1
Add-ons, last update check: 2020-09-12 00:04:58

Caught exception:
Traceback (most recent call last):
File “aqt\”, line 34, in cmd
File “aqt\”, line 114, in _onCmd
File “aqt\”, line 518, in _onBridgeCmd
File “<C:\Program Files\Anki\decorator.pyc:decorator-gen-24>”, line 2, in _linkHandler
File “lib\site-packages\anki\”, line 638, in decorator_wrapper
File “lib\site-packages\anki\”, line 635, in repl
File “C:\Users\ohhhs\AppData\Roaming\Anki2\addons21\review_heatmap\”, line 69, in heatmapLinkHandler
return None if not _old else _old(self, url)
File “aqt\”, line 78, in _linkHandler
File “lib\site-packages\anki\”, line 710, in rebuildDyn

Plese see


Thank you!