Applying for a standard UK visitor visa problem

[nong38]

I am trying to apply for a standard UK visitor visa and have completed some of it but when I get to the page about "some helping financially "with the trip I get a problem. I fill it all out and press  "Save and continue " It is saved but it returns to the same page again and does not continue with the application.

I have tried another browser but with the same results. Also have tried with and with out VPN.

Have previously applied twice before with no problems.

I would appreciate any help anyone could supply.