phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '83080799d5ed781f74fd46cb0ef3bc62' 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 ('83080799d5ed781f74fd46cb0ef3bc62', -1, 1771787161, 1771787161, '2d971ed8', -9, 0, 0)

Line : 187
File : sessions.php