[EC-CUBE] 3.0.12-p1から3.0.16へアップデート
[レンタルサーバ] ロリポップ
[OS] Windows10
[PHP] 7.1 CGI
[データベース] ５.６
[ブラウザ] Chrome
[導入プラグインの有無] アップデートをとしたことで全ページがエラーになってしまいました。デバッグモードでアクセスすると下記のエラーが表示されました。大変恐れ入りますがご教示いただけますと幸いです。よろしくお願いいたします。

1/3
PDOException in PDOStatement.php line 91:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'd0_.meta_tags' in 'field list'

2/3
PDOException in PDOStatement.php line 93:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'd0_.meta_tags' in 'field list'

3/3
InvalidFieldNameException in AbstractMySQLDriver.php line 71:
An exception occurred while executing 'SELECT d0_.page_id AS page_id0, d0_.page_name AS page_name1, d0_.url AS url2, d0_.file_name AS file_name3, d0_.edit_flg AS edit_flg4, d0_.author AS author5, d0_.description AS description6, d0_.keyword AS keyword7, d0_.update_url AS update_url8, d0_.create_date AS create_date9, d0_.update_date AS update_date10, d0_.meta_robots AS meta_robots11, d0_.meta_tags AS meta_tags12, d1_.page_id AS page_id13, d1_.target_id AS target_id14, d1_.block_id AS block_id15, d1_.block_row AS block_row16, d1_.anywhere AS anywhere17, d2_.block_id AS block_id18, d2_.block_name AS block_name19, d2_.file_name AS file_name20, d2_.create_date AS create_date21, d2_.update_date AS update_date22, d2_.logic_flg AS logic_flg23, d2_.deletable_flg AS deletable_flg24, d0_.device_type_id AS device_type_id25, d1_.block_id AS block_id26, d1_.page_id AS page_id27, d2_.device_type_id AS device_type_id28 FROM dtb_page_layout d0_ LEFT JOIN dtb_block_position d1_ ON d0_.page_id = d1_.page_id AND (d0_.page_id = d1_.page_id) LEFT JOIN dtb_block d2_ ON d1_.block_id = d2_.block_id WHERE d0_.device_type_id = ? AND d0_.url = ? ORDER BY d1_.target_id ASC, d1_.block_row ASC' with params [10, "_profiler"]:

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'd0_.meta_tags' in 'field list'

dtb_page_layout に meta_tags を追加すると動くと思います
ALTER TABLE `dtb_page_layout` ADD `meta_tags` LONGTEXT NULL AFTER `meta_robots`;

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EC-CUBEのカスタマイズ、トラブル解決承ります
お気軽にお問い合わせ下さい
https://www.ec-cube.net/integrate/partner/partner.php?partner_id=690

解決いたしました。ご丁寧にありがとうございました。