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 ('e473161d3c0ff9c46e6fb5ddca440fd0', -1, 1713421359, 1713421359, '038ec8e2', -10, 0, 0)

Line : 187
File : sessions.php