phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1f64cb7dd0b6d7f9d1a7d1e12c2f6f74' 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 ('1f64cb7dd0b6d7f9d1a7d1e12c2f6f74', -1, 1761836138, 1761836138, 'd849d8da', -4, 0, 0)

Line : 187
File : sessions.php