phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '21ff768a5ce5d06ed75f3660906b7ef6' 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 ('21ff768a5ce5d06ed75f3660906b7ef6', -1, 1715323691, 1715323691, '038df4c9', -4, 0, 0)

Line : 187
File : sessions.php