phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a1f9634d9409bcffd91c18783995df9c' 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 ('a1f9634d9409bcffd91c18783995df9c', -1, 1715185881, 1715185881, 'c0a80201', -7, 0, 0)

Line : 187
File : sessions.php