phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b28b40365724fb9e94bc75a2b8eb4971' 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 ('b28b40365724fb9e94bc75a2b8eb4971', -1, 1769426638, 1769426638, 'd849d802', 32, 0, 0)

Line : 187
File : sessions.php