Addition of custom option panel crashes Media Library & Admin Area

Related Posts:

1. Restrict Custom Post Type to One Item
2. How to Add Custom Taxonomy To Woocommerce Plugin
3. Prevent trash/delete action on specific post types
4. How to add custom content template part for a custom post type on main query using a plugin
5. register_taxonomy with multiple object type and update_count_callback
6. How often do you need to register_post_type?
7. How to use a dedicated template for the Custom Post Type from a plugin?
8. Remove POST_TYPE from custom post type permalink
9. How to add post_author column to custom post type
10. Use a textarea for a custom post type
11. How to register custom post types in a plugin?
12. How do I add a custom button to my “edit” list? ( edit.php?post_type= ) beside “Add New”
13. How to append element after thumbnail
14. How to have the right design for a custom post type without accessing themes
15. Custom Post Type | Fatal Error on register_post_type()
16. Set object terms not working on plugin activation
17. Get all of user’s custom post types in WP Admin for plugin
18. Admin notice not displaying
19. custom post type not showing in menu
20. Custom posts don’t work
21. Adding a custom post type taxonomy template in plugin
22. Tracking changes in admin-page so user gets warning when leaving the page
23. How to Get WordPress custom post data in WooCommerce product meta panel? [closed]
24. Create tabs in admin options page from custom post type loop
25. Custom fields for custom post type
26. WordPress custom post type capabilities issue
27. ACF in wordpress
28. post_parent in custom post type
29. Unable to format dates to put in event calendar
30. Custom post type in Custom widget – $listItem
31. Validate Custom Post Type fields
32. Create a select metabox that the user can pupolate?
33. Types plugin custom post add_action hooks
34. how can i show a google map in custom post type
35. Change Text in Admin Panel
36. Custom Post Type Front Page Gives 404
37. Show Post columns to specific users on condition
38. Insert custom taxonomy into category query
39. Simple Data picker meta box
40. Run query on specific admin options page and send results to select field in another function
41. Custom post type that lets users create a set of posts?
42. Can’t save custom post type fields
43. get_post_types doesn’t work in plugin
44. Add Excerpt On Quicksand Plugin
45. Custom Post Types in plugins?
46. how to group custom post types
47. echo value from ‘select’ field type into page template using cmb2?
48. wordpress plugin error handling
49. How to get term link that crosses different custom post types?
50. Custom post type Admin Page
51. Where to put archive-{post-type}.php
52. Add Capabilities to Custom Post Type after it has been created [duplicate]
53. How to load a new template page according to a particular URL?
54. Maintaining WP_Query Relation Among CPT, Custom Taxonomy, Permalinks- CPT UI
55. How to get the custom page get_permalink?
56. How to rename image at uploading on specific plugin or post-type in WordPress
57. How to make post sticky in the admin page?
58. Custom Post Type Navigation on Custom Field
59. Can’t get order_by meta_value_num to work properly
60. Show listings from Impress Listing plugin in random order using taxonomy and terms
61. Unable to retrieve any posts of CPT in wp-admin
62. One-to-many post relationships that are displayed by category (using posts-to-posts plugin)
63. Custom Post Types. Are there any disadvantages/advantages in using a plugin to develop them?
64. Making a Template for a CPT created by a plugin
65. Update post meta not working in transition_post_status
66. Dynamic dropdown select values depending on other custom field value
67. A custom post type in another post type
68. How can you use one database with multisite
69. Show data from one Custom Post Type in another Custom Post Type
70. Custom post type, have only my meta boxes
71. detect your custom post type in WordPress
72. Option page’s form doesn’t work
73. Can’t delete a custom post in front end with custom role
74. Add custom field to admin area witthout using a metabox
75. Can I assign a theme to a custom post type?
76. Create Custom Post type that uses Page.php template
77. How can I modify a custom post type and custom page template for a child theme if all content seams to be handled by theme’s ‘native’ plugin?
78. wordpress post_where set only for my costum post type
79. CPT to installable Plugin
80. filter the_content, custom post type, and wp_query
81. Fill custom fields when saving custom post types
82. Sorting custom post types in edit.php : Post disappear
83. Is it possible to get the specific content on the search page?
84. Get next and prev item from custom WP_Query and Custom Post Type
85. How can we get this dynamically as this folder may not be by the same name always → wp-admin
86. Error 404 change permalink term custom term taxonomy
87. Register custom_post_type from static function
88. How to select meta key in custom database query
89. Simple way to hide\show an announcement (just a div) on homepage?
90. Widget area for individual posts (custom post type)?
91. How can I load Template file from wordpress plugin
92. Link two different post using there post_id in post meta
93. Remove custom post type generated by a plugin (The Events Calendar) [closed]
94. Show custom taxonomy not in submenu
95. How to develop custom URL redirection
96. Not Able to Display Metabox Saved Checkbox and Selected option After Save/ Update
97. Ajax in Plugins: returns the whole page
98. Gutenberg: Dynamic Block – Show saved data in the editor
99. Custom order of CPT posts by title, in wp-admin area by default
100. How to consume external API from WordPress post editor and display the response data in the custom field?