Thanks for the reply.
Im using version 2.9.3
the full error is this:
WordPress database error: [Column ‘scanlator’ cannot be null]
INSERT INTO wp_comic_chapter (title, number, summary, series_id, pubdate, slug, scanlator, scanlator_slug, volume, folder) VALUES (‘Venom Spines’, ’14’, ”, 12, ‘2016-03-02 22:43:33 +0000′, ’14’, NULL, NULL, 0, ‘/UO/14/’)
I think you’re right about a different plugin causing the problem.
It must be Kommiku Viewer’s fault!