custom image size not being fetched

It turns out WP got confused because i used the settings> medias screen to also set the “medium” dimensions to 670×290. This redundance seems to disable entirely both the “medium” and the “listing-post-thumbnail” dimensions. Replacing the medium dimension values to 0 and then regenerating the thumbnails solved the issue.

Thanks to those who tried to help!

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)