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 ('f9a36eb1b3a0c8981f437ac4e255fad6', -1, 1713877265, 1713877265, '1276b8ed', 20, 0)

Line : 158
File : sessions.php