#1650 movement glitch

[Anonymous]

I was in sector 1103100 and bought some "LUXURIES"
then I plotted a course to the first, nearest planet that
came up as "Buying Luxuries" which was 1102102.
I followed the course but it said that I couldn't move
there when I was one sector away. The FOLLOW
COURSE display said: "Zero Sectors"... I clicked on it and
it gave me a white page that said this:

Warning: pg_query(): Query failed: ERROR: invalid input
syntax for integer: ""
in /space/me/openme/php/db_pgsql.inc on line 162
Database error: Invalid SQL: select * from forces where
sector_id='' and player_id <> '1958' and mine > 0
PostgreSQL Error: 1 (ERROR: invalid input syntax for
integer: "")
Session halted.

I repeated the process but the error did not repeat.