phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a3f4155b401a20e4f09c5969e12ce7c3' 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, priv_session_id) VALUES ('a3f4155b401a20e4f09c5969e12ce7c3', -1, 1714244029, 1714244029, 'ac45074a', -4, 0, 0, '618c2d5ee777a5b57096efe215022257')

Line : 187
File : sessions.php