Appliance upload did not work

I cant upload an ISO.

When I click on upload after setting the path a shortly "Please wait" appears.

Within a second I am redirected to https://195.184.93.XXX/apl/index.htm

with a 403 error.

So cant upload any applicance or file. Download works well.

Maximum upload size is 2 gb, what browser do you use?

As a workaround, just scp the ISO to /var/lib/vz/template/iso