Hello,
i did change the theme in a new one and i don’t get any error now on WP, but tags are still multiply. This happen everytime when i add a new tag. I downgrade the WP on 4.9.9 version and now i have this errors (but they are not multiply any more).
I added a new draft post with 3 new tags:
WordPress database error: [Duplicate entry ‘0’ for key ‘PRIMARY’]
INSERT INTO wp_term_taxonomy (term_id, taxonomy, description, parent, count) VALUES (2726, ‘post_tag’, ”, 0, 0)
WordPress database error: [Duplicate entry ‘0’ for key ‘PRIMARY’]
INSERT INTO wp_term_taxonomy (term_id, taxonomy, description, parent, count) VALUES (2727, ‘post_tag’, ”, 0, 0)
WordPress database error: [Duplicate entry ‘0’ for key ‘PRIMARY’]
INSERT INTO wp_term_taxonomy (term_id, taxonomy, description, parent, count) VALUES (2728, ‘post_tag’, ”, 0, 0)
Warning: Cannot modify header information – headers already sent by (output started at public_html/XXXX.al/wp-includes/wp-db.php:1398) in
public_html/XXXX.al/wp-admin/post.php on line 204
Warning: Cannot modify header information – headers already sent by (output started at public_html/XXXX.al/wp-includes/wp-db.php:1398) in public_html/XXXX.al/wp-includes/pluggable.php on line 1219