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 ('9c48bd29017b772e5c40cb80acf92eac', -1, 1519567102, 1519567102, '36e2fd22', 10, 0, 0)

Line : 211
File : sessions.php