Your lat/long must be in decimal format.
An example for the southern hemisphere would be: lat -33.785780 long 150.693160\ Notice the minus sign in the latitude which is only for stations in the southern hemisphere. VKSpotter will only take 6 decimal places. If you enter more than that, you will see an error when you click the Update Profile button.
A site for obtaining, and the conversion of lat/long from different formats to decimal format would be www.latlong.net or this site https://www.egloff.eu/googlemap_v3/carto.php
Enter the lat and long in the appropriate fields and click the “Update Profile” button. The lat long will only accept 6 decimal places. If you enter more than that you will receive an error.
You will need to logout and log back in after changing and saving your lat/long.