Error ical with booking

Hi
I'm having trouble importing the iCal calendar from the site to Booking.com.

I'm getting the error message: "This iCal URL is invalid. Please try again."


Thank

Hi,

Please raise a new private support ticket and provide us your website info so we can assist you better.

Regards,

Hello,
I can't create a private ticket; I haven't renewed my subscription yet.
The iCal link works for Airbnb and Abritel, but not for Booking.com.

Thank you.

Hello, no help then?
Thank

Hi,

Thank you for contacting us, please renew your subscription in order to request technical support as well as downloading latest versions.

www.solidres.com/support-policy

Regards,

Hi,
it's not cool of you not to respond if I don't renew my subscription. Renewal isn't possible at the moment.

Could you at least tell me if the ical.php file is still required in the cli directory, since it's no longer showing up?

Thanks