phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4391840cead65e0b2d38c547f1c0c8e1' for key 'PRIMARY'

INSERT INTO fl_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4391840cead65e0b2d38c547f1c0c8e1', -1, 1759145306, 1759145306, 'd849d88a', 5, 0, 0)

Line : 187
File : sessions.php