WARNING(2): "file_put_contents(): Only 0 of 6 bytes written, possibly out of free disk space"

WARNING(2): "file_put_contents(): Only 0 of 6 bytes written, possibly out of free disk space"

WARNING(2): "file_put_contents(): Only 0 of 6 bytes written, possibly out of free disk space"

WARNING(2): "Cannot modify header information - headers already sent by (output started at /var/www/clients/client12/web25/web/system/core/logging/LogControl.inc.php:262)"

WARNING(2): "Cannot modify header information - headers already sent by (output started at /var/www/clients/client12/web25/web/system/core/logging/LogControl.inc.php:262)"

WARNING(2): "Cannot modify header information - headers already sent by (output started at /var/www/clients/client12/web25/web/system/core/logging/LogControl.inc.php:262)"

WARNING(2): "Unknown: write failed: No space left on device (28)"

WARNING(2): "Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/www/clients/client12/web25/tmp)"