このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
cannot focus element
対処
関連リンク
Unknown error: cannot focus element - Stack Overflowstackoverflow.com/.../unknown-error-cannot-focus-ele...
https://stackoverflow.com/questions/35430288/unknown-error-cannot-focus-element
Protractor, Failed: unknown error: cannot ...
https://stackoverflow.com/questions/42013023/protractor-failed-unknown-error-cannot-focus-element-on・・・
getting cannot focus element in chrome and ...
https://stackoverflow.com/questions/34537344/getting-cannot-focus-element-in-chrome-and-edge-using-j・・・