phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f8755868d07825ab0bd2417ecf1f7fc5' 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 ('f8755868d07825ab0bd2417ecf1f7fc5', -1, 1768147582, 1768147582, '0aff0001', 6, 0, 0)

Line : 199
File : sessions.php