LG IPK installation developer not open

Good afternoon everyone, the page for developers on the LG website in the specific sector for IPK installation has apparently been deactivated, it is giving the error 404 page not found, I am working on a testing process with a large company to be able to carry out some procedures and I can’t access it on any device, be it smartphone, TV or PC, if you have any information on this topic I would greatly appreciate the feedback

Please refer to App Testing with Developer Mode App. Thank you.