This is a total "new one". I have never heard of this problem, ....are you sure that you are at a friendly port that displays an anchor symbol ?????
Straight up and down anchor is a "friendly" port for refit (ammo, fuel ),and crew rest (also inclued refuel ship).... a port with no symbol is just a port, a port with a tilted anchor is a docking port, or home port for all repairs and refit needs.