phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '44acac9e571d6fc51cccb19630b24fbf' 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 ('44acac9e571d6fc51cccb19630b24fbf', -1, 1769193455, 1769193455, 'd849d83c', 1, 0, 0)

Line : 187
File : sessions.php