error about miss_css when query some dictionary

[dongjiahong]

Anki 2.1.15 (442df9d6) Python 3.6.7 Qt 5.12.1 PyQt 5.11.3 Platform: Windows 10 Flags: frz=True ao=True sv=1

Caught exception: File "C:\Users\lele\AppData\Roaming\Anki2\addons21\1807206748\common.py", line 80, in action.triggered.connect(lambda: query_from_browser(browser)) File "C:\Users\lele\AppData\Roaming\Anki2\addons21\1807206748\query_init_.py", line 55, in query_from_browser query_from_editor_fields(browser.editor) File "C:\Users\lele\AppData\Roaming\Anki2\addons21\1807206748\query_init_.py", line 90, in query_from_editor_fields query_all([editor.note], flush, fields) File "C:\Users\lele\AppData\Roaming\Anki2\addons21\1807206748\query_init_.py", line 117, in query_all promot_choose_css(work_manager.missed_css) File "C:\Users\lele\AppData\Roaming\Anki2\addons21\1807206748\query\common.py", line 127, in promot_choose_css Template.miss_css.format(dict=css['title'], css=css['file'])) <class 'AttributeError'>: type object 'Template' has no attribute 'miss_css'

[open6400]

I've met the same problem, how did you fix it?