phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6b6fe0431c19e4f021606676c3e9c33d' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6b6fe0431c19e4f021606676c3e9c33d', -1, 1764541075, 1764541075, 'd849d825', -4, 0, 0)

Line : 187
File : sessions.php