phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c0138a99ccbd8ad605375854fe15f80' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('6c0138a99ccbd8ad605375854fe15f80', -1, 1768493735, 1768493735, 'd849d8a4', 7, 0)

Line : 180
File : /www/includes/sessions.php