string(245) "INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a04fa315643ca07c54a00ac60ac09c79', -1, 1429605631, 1429605631, '36e3d78c', -1, 0, 0)" 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 ('a04fa315643ca07c54a00ac60ac09c79', -1, 1429605631, 1429605631, '36e3d78c', -1, 0, 0)

Line : 192
File : sessions.php