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 ('46560b0179711c2e357e4d9f72a8e982', -1, 1529596275, 1529596275, '1714ec3d', -4, 0, 0)

Line : 219
File : sessions.php