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 ('b2141397fd4718a77c8ff807df03ab29', -1, 1542444844, 1542444844, '369f2c36', 0, 0, 0)

Line : 186
File : sessions.php