My Windows Chrome nor Android Chrome have any ad/script blockers.  Both showed me the error page.  Looks like it's showing me the tool now, though.

On Tue, Jan 16, 2024 at 12:10 PM Alec Edworthy <A.Edworthy@lboro.ac.uk> wrote:
As someone said on a different thread, and it worked for me, check your
ad/script blockers.  I disabled mine for the site and the site came back
to life for me.

A

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Alec Edworthy
A.Edworthy@lboro.ac.uk