phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '50f68e15e6b6c404698b72b94ddfa2bc' 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 ('50f68e15e6b6c404698b72b94ddfa2bc', -1, 1772131510, 1772131510, 'd849d8bf', -4, 0, 0)

Line : 187
File : sessions.php