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 ('8c79ddc1e70106c6a4d8a7b1a9f4d57e', -1, 1566799922, 1566799922, '22ef9e6b', 4, 0, 0)

Line : 189
File : sessions.php