phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '421661ee2311f0c661ca9a346c88ed6e' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('421661ee2311f0c661ca9a346c88ed6e', -1, 1769767497, 1769767497, 'd849d8d5', -4, 0, 0)

Line : 187
File : sessions.php