Error 404 on cp-install

Describe the bug

Simplar to this one: #151 (closed)

Steps to reproduce

1. Folow https://docs.castopod.org/getting-started/install.html
2. Open https://my_domain_name.com/cp-install

Expected behavior

Castopod install script should be loaded

Actual behavior

Error 404

Relevant logs and/or screenshots

What do you need?

Context

• Castopod: https://code.castopod.org/adaures/castopod/uploads/bbae68bba428b50b1e7fdea264791a28/castopod-1.0.0-beta.13.zip
• OS: Ubuntu server 20.04
• Browser: all
• Web server: Apache/2.4.41 (Ubuntu)

Possible fixes

idk