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 ('0b1ee3f9dd4d1246b48f9a1b63729aa7', -1, 1715912278, 1715912278, '12de68c4', 20, 0)

Line : 158
File : sessions.php