Headers error

  • Hello,

    When removing WP default displaying ‘category’ term in urls (by adding %category% as base for categories in the optional section in dashboard), no pages/posts are displayed (only archives pages), getting a 404 error.

    When I remove the optional base category, all is displayed correctly.

    Previously, a SEO plugin used to remove WP default term but that plugin had been removed. I′ve cleared WP and several browsers cache, not solving the issue (no cache on server side).

    When removing default term (no pages/posts diplayed, only archives pages), WP Debug mode shows:

    Notice: Undefined property: wpdb::$dmtable in /home/rabbitr1/public_html/wp-includes/wp-db.php on line 648

    Warning: Cannot modify header information – headers already sent by (output started at /home/rabbitr1/public_html/wp-includes/wp-db.php:648) in /home/rabbitr1/public_html/wp-content/plugins/wp-super-cache/wp-cache-phase2.php on line 1379

    wp-cache-phase2.php on line 1379 says:

    if ( defined( ‘WPSC_VARY_HEADER’ ) ) {
    if ( WPSC_VARY_HEADER != ” ) {
    header( ‘Vary: ‘ . WPSC_VARY_HEADER );
    }

    Currently usign:

    – WP v5.7.2
    – the latest Hello Elementor′s theme version
    – Elementor v3.2.5
    – WP Super Cache 1.7.4

    Why is this term removal affecting only pages/posts headers, and not those for archives?

    Regards,

    Julia

    The page I need help with: [log in to see the link]

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