こんばんは。

お店が忙しくて、ご連絡遅れました。申し訳ありません。

どんなエラーかといいますと、
「システムエラーが発生しました。
大変お手数ですが、サイト管理者までご連絡ください。　ログイン画面へ」　というメッセージが出て

http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/customer/3/edit

が、そのときのアドレスです。
エラーログは下のものになります。


[2019-11-19 00:03:12] app.INFO [N/A] [1ad1087] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_setting_system_log"] [GET, /fukufukufutedukayama/setting/system/log, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/customer, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:03:11] app.INFO [N/A] [2f83fa8] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_setting_system_log"] [GET, /fukufukufutedukayama/setting/system/log, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/customer, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:03:11] app.INFO [N/A] [7f9aae9] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_setting_system_security"] [GET, /fukufukufutedukayama/setting/system/security, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/customer, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:02:20] app.INFO [N/A] [ed470bc] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_customer_edit"] [GET, /fukufukufutedukayama/customer/3/edit, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/customer, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:02:17] app.INFO [N/A] [5435a9c] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_customer"] [GET, /fukufukufutedukayama/customer, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/content/block/11/edit, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:01:02] app.INFO [N/A] [b1652f7] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_content_block_edit"] [GET, /fukufukufutedukayama/content/block/11/edit, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/content/block/11/edit, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:01:01] app.INFO [N/A] [38fa6d7] [1] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_login"] [POST, /fukufukufutedukayama/login, 126.2.172.108, http://shop.fukujudo-hidenobu.co.jp/fukufukufutedukayama/content/block/11/edit, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]
[2019-11-19 00:00:56] app.INFO [N/A] [2461f57] [anon.] [Eccube\Log\Logger:log:68] - PROCESS END ["admin_content_block_edit"] [GET, /fukufukufutedukayama/content/block/11/edit, 126.2.172.108, NULL, Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36]

すみません。
これで何かわかりますでしょうか。

ご助力ありがとうございます。