Fatal error out of nowhere, was working fine.

I have this sudden fatal error, even when nothing was being done, not sure if there is an auto update has been done.

Last activity was assigning a custom group field to user. It was working fine, then suddenly 2 hours later I got this fatal error and I cannot do anything else with Metabox in my WP dashboard,

If I click on Custom Post type, or custom fields, setting page, it will just throw me this fatal error.

( ! ) Warning: Undefined array key "fields" in /Users/leohermanto/Local Sites/dvxfullwoo/app/public/wp-content/plugins/oxygen/component-framework/includes/metabox/oxygen-metabox-integration.php on line 585

Call Stack
# Time Memory Function Location
1 16782560875.4127 447200 {main}( ) .../edit.php:0
2 16782560875.4127 59254088 WP_Posts_List_Table->prepare_items( ) .../edit.php:225
3 16782560875.4127 59254760 wp_edit_posts_query( ) .../class-wp-posts-list-table.php:166
4 16782560875.4127 59259320 wp( ) .../post.php:1239
5 16782560875.4127 59259320 WP->main( ) .../functions.php:1330
6 16782560875.4127 59629880 do_action_ref_array( ) .../class-wp.php:787
7 16782560875.4127 59629880 WP_Hook->do_action( ) .../plugin.php:524
8 16782560875.4127 59629880 WP_Hook->apply_filters( ) .../class-wp-hook.php:331
9 16782560875.4127 59631088 Oxygen_VSB_Dynamic_Shortcodes->init_custom_dynamic_data( ) .../class-wp-hook.php:307
10 16782560875.4127 59631088 apply_filters( ) .../oxygen-dynamic-shortcodes.php:18
11 16782560875.4127 59631496 WP_Hook->apply_filters( ) .../plugin.php:191
12 16782560875.4127 59633000 OxygenMetaBoxIntegration->init_dynamic_data( ) .../class-wp-hook.php:307
13 16782560875.4127 59674368 array_reduce ( ) .../oxygen-metabox-integration.php:108
14 16782560875.4127 59858040 OxygenMetaBoxIntegration->add_button( ) .../oxygen-metabox-integration.php:108

( ! ) Fatal error: Uncaught TypeError: array_reduce(): Argument #1 ($array) must be of type array, null given in /Users/leohermanto/Local Sites/dvxfullwoo/app/public/wp-content/plugins/oxygen/component-framework/includes/metabox/oxygen-metabox-integration.php on line 585

Any help on the above greatly appreciated.