phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5d965fa9eab51ab6e907125b1d3f56f2' 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 ('5d965fa9eab51ab6e907125b1d3f56f2', -1, 1784033086, 1784033086, 'd849d982', -9, 0, 0)

Line : 187
File : sessions.php