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 ('f5bc5552083a3b2d2085638f5c7794eb', -1, 1714697177, 1714697177, '12756b5a', 7, 0)

Line : 158
File : sessions.php