Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "_return_false" not found or invalid function name in /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/class-wp-hook.php:324
Stack trace:
#0 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#1 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/rest-api/class-wp-rest-server.php(310): apply_filters()
#2 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/rest-api.php(428): WP_REST_Server->serve_request()
#3 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/class-wp-hook.php(324): rest_api_loaded()
#4 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#5 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/plugin.php(565): WP_Hook->do_action()
#6 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/class-wp.php(418): do_action_ref_array()
#7 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/class-wp.php(813): WP->parse_request()
#8 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/functions.php(1336): WP->main()
#9 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-blog-header.php(16): wp()
#10 /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/index.php(17): require('/homepages/18/d...')
#11 {main}
thrown in /homepages/18/d879839313/htdocs/clickandbuilds/dataInsightsOld/wp-includes/class-wp-hook.php on line 324