phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cda1bfd4a74d23d663950a921e7f235e' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cda1bfd4a74d23d663950a921e7f235e', -1, 1771051277, 1771051277, 'd849d88a', -4, 0, 0)

Line : 187
File : sessions.php