JosefStepanek

I had a similar error using ThemeREX Addons plugin. There is an incompatibility, I guess since WordPress 6.2. I managed to hot-fix it editing:
wp-content/plugins/trx_addons/components/api/gutenberg/blocks/dist/blocks.build.js:

• Replaced all wp.components.ServerSideRender with wp.serverSideRender
• Replaced all wp.editor.InspectorControls with wp.blockEditor.InspectorControls

• This reply was modified 1 year, 4 months ago by JosefStepanek. Reason: Specified my case
• This reply was modified 1 year, 4 months ago by JosefStepanek.

From error log:
Fatal error: Call to undefined function filter_var()

Hi,

I just found a solution for that blank page after clicking on Authorize New Account.

There was a problem with the send_authed_request() in lib/wp-twitter.php.

If you comment the “if ( ! filter_var…” condition, as shown below, the authorization should pass ok.

public function send_authed_request( $request_url, $method, $body_parameters = array() ) {
		$parameters = $this->_get_request_defaults();
		$parameters['body'] = wp_parse_args( $body_parameters, $parameters['body'] );

		//if ( ! filter_var( $request_url , FILTER_VALIDATE_URL ) )
			$request_url = self::get_api_endpoint( $request_url );

		$this->sign_request( $parameters, $request_url );