Pages throwing 404 error on server load

Finally found the problem.

This theme flush the rewrite rules on every request. I have removed the multiple calls to flush_rewrite_rules() and the problem is now gone.

Related Posts:

  1. Custom Taxonomy leads to 404 page
  2. Expired event redirect to parent category
  3. All tag/category/custom taxonomy archives 404
  4. Why do my offline development site and online live site behave differently?
  5. Taxonomy link not working (leads to 404 page)
  6. How to perform unit testing on proposed patches in Trac?
  7. Can the default “post tags” taxonomy be renamed?
  8. Remove the category/taxonomy description field?
  9. Add ‘Description’ to taxonomy ‘Quick Edit’
  10. How to organize and cache additional data associated with terms?
  11. get a specific taxonomy term name
  12. get_terms() How many is TOO many?
  13. Child Terms not Displaying on the Taxonomy Term Admin Screen
  14. How to display child term of current term’s parent taxonomy?
  15. Sorting custom taxonomy causes menus error
  16. REST API: No route was found matching the URL and request method
  17. Set a cookie in WordPress, using a select form and Jquery
  18. How to add terms to taxonomy with wp_insert_terms?
  19. Is there any difference between post in child term and child & parent terms?
  20. Create and move terms for taxonomies
  21. Custom taxonomy archive – No posts found [closed]
  22. Display parent taxonomy name and list child taxonomies below it?
  23. How can I remove links from the function “get term list”?
  24. Alphabetical order in taxonomy.php
  25. Get Term names from WP Term Object
  26. functions to create term and child terms
  27. base directories / URL
  28. WordPress REST get all items without a taxonomy assigned
  29. Getting the parent from the wp_term_taxonomy
  30. How do I get the current tag out of a taxonomy?
  31. Variable in Array Not Working
  32. If search matches taxonomy
  33. How to list 2 taxonomy terms for a post, based on their hierarchy
  34. Showing custom taxonomy column in taxonomy category listings immediately after create category
  35. Custom Field as Custom Taxonomy?
  36. Order wordpress taxonomy parent terms by their children count
  37. Pagination on taxonomy archive pages breaks
  38. Modify the query method when adding category filtering function to the custom post list
  39. Use a CPT as a taxonomy
  40. need to get postthumnails from a post whithin a category custom post type
  41. how to display only the sub category names of the taxonmoy
  42. Adding tag’s featured image to tag archive
  43. Set a CPT slug as a base name for all the taxonomies
  44. Group Post by Custom Taxonomy 2 under Custom Taxonomy 1
  45. Individual post. Meta_key, taxonomy or post status for separation?
  46. Taxonomy archive page WP_Query does not return get_the_permalink() or get_permalink() value
  47. Ordering Taxonomies / Changing term_id
  48. How to show taxonomy image instead of taxonomy name on a list
  49. Multi Taxonomies same terms
  50. benefits of the table ‘wp_term_taxonomy’
  51. How to save a multiple checkbox array into a non-hierarchical taxonomy
  52. 404 error on default post type and default taxonomy fronted page
  53. `get_terms()` with `child_of` and `childless` combined
  54. Add text to the end of each list item in wp_list_categories
  55. echo term name outside the loop, using term slug
  56. What are these undocumented arguments for register_taxonomy?
  57. Dynamic filtering of posts with custom taxonomies
  58. Sorting tags by name
  59. How to display only the direct children of a term on a taxonomy page
  60. How to get terms from a custom taxonomies after WordPress 4.5.0
  61. Search Media by taxonomy
  62. Get Taxonomy name from “registered_taxonomy” hook
  63. In two-category searches, where does WordPress save the title of the 2nd category?
  64. Show only first child in dropdown
  65. Custom Post Type + Custom Taxonomy = Archive Listing Page Problems
  66. Taxonomy term archive default loop returns 1 record instead of 8
  67. archive page sidebar not working
  68. Related terms – Terms that feature in post of current term
  69. Select query with two and two related taxonomies
  70. Get something out from taxonomy
  71. Taxonomy Dropdown Question
  72. get_term_by with a variable
  73. Customize menu link for taxonomy in WP menu
  74. Change searching from world level to first letter
  75. How To Query For An Empty Taxonomy Field
  76. Is possible hide hierarchical select dropdown created by jetsmartfilters? (only visual issue)
  77. How to have article URL like example.com/article1 and example.com/foo/article2?
  78. I want to edit the tags template by adding text that displays all tags from the listed posts
  79. Add specific content to a taxonomy results page
  80. Set the limit of taxonomy per page
  81. echo a tax term in loop
  82. I need posts within a taxonomy category that are tagged “featured” to show up first
  83. How to manage the links of a new taxonomy
  84. Same page for startpage and archive?
  85. WP REST API taxonomy is missing on custom post type
  86. Get taxonomy url, name, post count & image
  87. taxonomy terms are not populating select tag options
  88. how to print post tags [duplicate]
  89. Filtering posts by taxonomy and meta_value
  90. What to do with shared terms splitting in WordPress 4.2?
  91. How to get a query odered by N of matching taxonomies?
  92. Help me add Taxonomy to byline
  93. How Can I List Categories by Date?
  94. Custom Taxonomy Page redirect 404
  95. Passing values by form to create a query
  96. Why is taxonmy-[taxonomyname].php not working?
  97. Adding Advanced Custom Fields to posts without hyperlinks
  98. How to display a term of taxonomy
  99. Custom Titles for Multiple Tag Taxonomy Page
  100. Add new taxonomy in WP without generate any url