phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '81a71d625230a65cc4485d6e09576112' 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 ('81a71d625230a65cc4485d6e09576112', -1, 1765939520, 1765939520, '00000000', 10, 0, 0)

Line : 187
File : sessions.php