phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7fcf1719d6568a659b01a9edd3a2587b' 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 ('7fcf1719d6568a659b01a9edd3a2587b', -1, 1769016732, 1769016732, 'd849d879', -4, 0, 0)

Line : 187
File : sessions.php