phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1f78af6ac45bbb39d8051c0e9012867b' 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 ('1f78af6ac45bbb39d8051c0e9012867b', -1, 1714368654, 1714368654, 'ac1d001b', -4, 0, 0)

Line : 187
File : sessions.php