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 ('1109d40e37b663a5f8b200d9b6e5a31d', -1, 1519204896, 1519204896, '36c4d745', 0, 0, 0)

Line : 187
File : sessions.php