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 ('cc45de6f3b7bd1bfc5fdd16a3e4d0156', -1, 1766755247, 1766755247, 'd849d880', 25, 0, 0)

Line : 189
File : sessions.php