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 ('61b0199db0c8316404bd8483ab926444', -1, 1547682077, 1547682077, '03502021', -4, 0, 0)

Line : 196
File : sessions.php