The use of this cgi-bin mechanism is deprecated and it will be removed in the near future.

This was announced at the beginning of the year: https://www.aavso.org/devann-3-tools-access-aavso-resources .

The new API is described at https://www.aavso.org/vsp-api .

If you have difficulties changing over, please contact webmaster_at_aavso.org with subject line VSP API.

Thank you.