phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('2c0daaf904da2c0f335b1f372b9f7fe9', -1, 1713852533, 1713852533, '1274efc3', -4, 0)

Line : 158
File : sessions.php