phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '788e789aaabd8891db05ff58930dcdd2' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('788e789aaabd8891db05ff58930dcdd2', -1, 1772053132, 1772053132, 'd849d8b4', 17, 0)

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