phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd8c6211788e9cef48b6a1853ded40a51' 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 ('d8c6211788e9cef48b6a1853ded40a51', -1, 1715757110, 1715757110, '12750b83', 4, 0, 0)

Line : 187
File : sessions.php