phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5f4ffd412b10b5a93df2a5a39d8e4ae7' 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 ('5f4ffd412b10b5a93df2a5a39d8e4ae7', -1, 1786544660, 1786544660, 'd849d8bb', 5, 0, 0)

Line : 187
File : sessions.php