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 ('dc8a14c842013ff1ee3f93e9f73ae60e', -1, 1495790369, 1495790369, '36502759', 43, 0, 0)

Line : 320
File : sessions.php