C C P E x p r e s s Starting.. I'm not going to.

[Translator]

I bought a VPN router for C841M-4X-JSEC/K9 CiscoIOS15.9.

From the initial state, I set the following in the CLI.
username <myuser> privilege 15 secret 9 <mypassword>

After that, I tried to connect CCP Express from MacOS with a LAN cable at http://10.10.10.1/ (or https), but the status "C C P E x p r e s s is starting up. . ." progresses no further.

The config around http appears to be fine.
ip forward-protocol nd
ip http server
ip http access-class 23
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
access-list 23 permit 10.10.10.0 0.0.0.127

DHCP also assigns IP addresses to your PC (for example, 10.10.10.2)
Should I care about Java version? (The version running on PC is 21 series.)

What could be the cause of CCP Express not proceeding since it was started?

[Translator]

First, Cisco Configuration Professional Express is no longer sold and supported.
You cannot download it from the following page (login required).
From now on, it may be difficult to use it for daily operation.

https://www.cisco.com/c/m/ja_jp/customer/cisco-start-user-site/download.html

I also connected to CCP Express with my C841M.
The operation was completed in the web browser, and it seemed that Java Runtime was not used.
※ We didn't launch external applications like SDM (Security Device Manager), which we used to say, or ASDM, which we say in ASA.

(Since my C841M is in regular use, I can't do it until I input the described configuration and check the validity.)
Since I have access to Web UI, I was worried whether the file of CCP Express is damaged or not.

This is the first step, but the CCP Express file is no longer available for download.
I wonder if the file can be replaced even if it is damaged.