phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f6161b9570c4fed400c092a7e43ba03f' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f6161b9570c4fed400c092a7e43ba03f', -1, 1766363161, 1766363161, 'd849d826', -4, 0, 0)

Line : 187
File : sessions.php