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, session_admin) VALUES ('d5664d57db0c9b789eb2da3c1db6cd46', -1, 1714011630, 1714011630, '030f04f4', -4, 0, 0)

Line : 187
File : sessions.php