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 ('02fd0ef96414812996e66f59a352f591', -1, 1519205158, 1519205158, '36c4d745', 5, 0, 0)

Line : 187
File : sessions.php