Log::error() 

\nn\t3::Log()->error($extName = '', $message = '', $data = []); 

Write a warning in the sys_log table. Abbreviation for nnt3::Log()->log(..., 'error');

\nn\t3::Log()->error( 'extname', 'text', ['die'=>'data'] );

return void

public function error( $extName = '', $message = '', $data = []) {
	$this->log( $extName, $message, $data, 'error' );
}