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 ('94d7ac84b6897eea5359c02ba974bbd3', -1, 1566754089, 1566754089, '23afc804', 39, 0, 0)

Line : 187
File : sessions.php