phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '851c40fc91ab508cd57bc52e7fa1a08d' 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 ('851c40fc91ab508cd57bc52e7fa1a08d', -1, 1714137979, 1714137979, '12dd8d2c', 7, 0, 0)

Line : 187
File : sessions.php