Warning: session_start(): open(/var/lib/php/sessions/sess_16f987fa39883deaedac9a48aa6a9024, O_RDWR) failed: Read-only file system (30) in /sftp/simplesamlphp/lib/SimpleSAML/SessionHandlerPHP.php on line 63

Warning: mysqli_connect(): (HY000/2002): No such file or directory in /sftp/demo/cms/docrevista/funciones.php on line 15
no se pudo establecer conexión con la base de datos
Warning: Unknown: open(/var/lib/php/sessions/sess_16f987fa39883deaedac9a48aa6a9024, O_RDWR) failed: Read-only file system (30) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/lib/php/sessions) in Unknown on line 0