I can not currently comment, but the answers of Marta Freitas is perfect!
It worked for me!
Error happened when importing database to another server.
However, for some strange reason I didn’t need all the commands, I had to go testing one by one (because adding them all in phpMyAdmin would stop at a certain port). But it was great!
So to me the answer was this:
DELETE FROM wp_termmeta WHERE meta_id=0;
DELETE FROM wp_terms WHERE term_id=0;
DELETE FROM wp_term_taxonomy WHERE term_taxonomy_id=0;
DELETE FROM wp_commentmeta WHERE meta_id=0;
DELETE FROM wp_comments WHERE comment_ID=0;
DELETE FROM wp_links WHERE link_id=0;
DELETE FROM wp_options WHERE option_id=0;
DELETE FROM wp_postmeta WHERE meta_id=0;
DELETE FROM wp_users WHERE ID=0;
DELETE FROM wp_posts WHERE ID=0;
DELETE FROM wp_usermeta WHERE umeta_id=0;
ALTER TABLE wp_termmeta ADD PRIMARY KEY(meta_id);
ALTER TABLE wp_terms ADD PRIMARY KEY(term_id);
ALTER TABLE wp_term_taxonomy ADD PRIMARY KEY(term_taxonomy_id);
ALTER TABLE wp_commentmeta ADD PRIMARY KEY(meta_id);
ALTER TABLE wp_comments ADD PRIMARY KEY(comment_ID);
ALTER TABLE wp_links ADD PRIMARY KEY(link_id);
ALTER TABLE wp_options ADD PRIMARY KEY(option_id);
ALTER TABLE wp_postmeta ADD PRIMARY KEY(meta_id);
ALTER TABLE wp_users ADD PRIMARY KEY(ID);
ALTER TABLE wp_posts ADD PRIMARY KEY(ID);
ALTER TABLE wp_usermeta ADD PRIMARY KEY(umeta_id);
ALTER TABLE wp_termmeta CHANGE meta_id meta_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_terms CHANGE term_id term_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_term_taxonomy CHANGE term_taxonomy_id term_taxonomy_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_commentmeta CHANGE meta_id meta_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_comments CHANGE comment_ID comment_ID BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_links CHANGE link_id link_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_options CHANGE option_id option_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_postmeta CHANGE meta_id meta_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_users CHANGE ID ID BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_posts CHANGE ID ID BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;
ALTER TABLE wp_usermeta CHANGE umeta_id umeta_id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT;