phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '785a3bd6c2c94d1bc41759866cb1698b' 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 ('785a3bd6c2c94d1bc41759866cb1698b', -1, 1768235887, 1768235887, '7f000001', -4, 0, 0)

Line : 187
File : sessions.php