phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a9ecc74e3bc9eff019722b9e1ca55d5c' 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 ('a9ecc74e3bc9eff019722b9e1ca55d5c', -1, 1714301808, 1714301808, '0391b859', 4, 0, 0)

Line : 187
File : sessions.php