phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6671cb24e2e8c0fb9bf4d911f653af30' 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 ('6671cb24e2e8c0fb9bf4d911f653af30', -1, 1766002682, 1766002682, 'd849d824', -4, 0, 0)

Line : 187
File : sessions.php