phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '879718a72d6b2bfdc41921fac1f6426a' 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 ('879718a72d6b2bfdc41921fac1f6426a', -1, 1714582680, 1714582680, 'c0a80201', -9, 0, 0)

Line : 187
File : sessions.php