Fatal error: Uncaught Error: Call to a member function add_query_var() on string in /home/maiso391/public_html/wp-includes/class-wp-taxonomy.php:504
Stack trace:
#0 /home/maiso391/public_html/wp-includes/taxonomy.php(494): WP_Taxonomy->add_rewrite_rules()
#1 /home/maiso391/public_html/wp-includes/taxonomy.php(82): register_taxonomy('category', 'post', Array)
#2 /home/maiso391/public_html/wp-settings.php(429): create_initial_taxonomies()
#3 /home/maiso391/public_html/wp-config.php(109): require_once('/home/maiso391/...')
#4 /home/maiso391/public_html/wp-load.php(50): require_once('/home/maiso391/...')
#5 /home/maiso391/public_html/wp-blog-header.php(13): require_once('/home/maiso391/...')
#6 /home/maiso391/public_html/index.php(1): require('/home/maiso391/...')
#7 {main}
thrown in /home/maiso391/public_html/wp-includes/class-wp-taxonomy.php on line 504
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