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 ('22aaef17d08d394a9f7a54b0ab88d90f', -1, 1519239974, 1519239974, '36e22175', -2, 0, 0)

Line : 187
File : sessions.php