phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('d29fcc2e4b1444cc7515bbe0cf22ff2c', 1, 1527470996, 1527470996, '36e05b3a', 33, 0, 0)

Line : 207
File : sessions.php