phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b607433770e65ff855ef6bad8a8810c3' 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 ('b607433770e65ff855ef6bad8a8810c3', -1, 1768138368, 1768138368, '0aff0001', 31, 0, 0)

Line : 199
File : sessions.php