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 ('8d4ad4e77f3c6c5c505d3e3735105ad7', -1, 1713517227, 1713517227, '038a66b2', -7, 0, 0)

Line : 187
File : sessions.php