phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c4a9f030c777976b34c9c83a587f9d7' 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 ('6c4a9f030c777976b34c9c83a587f9d7', -1, 1714977255, 1714977255, 'c0a80201', 31, 0, 0)

Line : 187
File : sessions.php