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 ('44c2c719a6e193c8d94e0c2fc7d5db93', -1, 1519118451, 1519118451, '36e33093', -1, 0, 0)

Line : 187
File : sessions.php