phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bf4bf22f171c3185dfd6064c7290d9c5' 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 ('bf4bf22f171c3185dfd6064c7290d9c5', -1, 1769130477, 1769130477, 'd849d89a', -4, 0, 0)

Line : 187
File : sessions.php