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 ('5ee6e96c3e2f96156b1e22aa4d12a09d', -1, 1571005721, 1571005721, '64187ae4', -4, 0, 0)

Line : 172
File : sessions.php