phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '691c1156b23298189cd407155ae68dfc' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('691c1156b23298189cd407155ae68dfc', -1, 1762757268, 1762757268, 'd849d8d9', -4, 0, 0)

Line : 187
File : sessions.php