phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6d6fe971679a9b58c0e9bc29e2ae6d76' 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 ('6d6fe971679a9b58c0e9bc29e2ae6d76', -1, 1775713180, 1775713180, 'd849d895', -4, 0, 0)

Line : 187
File : sessions.php