phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7d640dd478b94d3c24d6b729d20c4351' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7d640dd478b94d3c24d6b729d20c4351', -1, 1753111372, 1753111372, 'd849d8a3', 28, 0, 0)

Line : 187
File : sessions.php