Build Index error

Hello, Build Index error, my configuration is: php7.2, mysql5.7, please tell me how to solve this problem, My website is in Japanese. I wonder if it does not support utf8? thank you.

[error]: Duplicate entry ‘354517-学校でバイブをパンツ固定されたまま長時’ for key ‘PRIMARY’
[post_id]: 361259 – [error]: Could not save index rows [sql]:
INSERT INTO wp_is_inverted_index (post_id, term, term_reverse, score, title, content, excerpt, author, comment, tag, category, taxonomy, customfield, taxonomy_detail, customfield_detail, type, lang) VALUES