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 ('f8bcf7dd7a6347f64558d36a8c1ad805', -1, 1568930060, 1568930060, '12cf88b8', 18, 0, 0)

Line : 187
File : sessions.php