phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '64094b3c966f9c82f11934c6e8decfba' 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 ('64094b3c966f9c82f11934c6e8decfba', -1, 1758243916, 1758243916, 'd849d877', -9, 0, 0)

Line : 187
File : sessions.php