Strapi returned 401 error for my app in server, but in localhost all good

Questions and Answers
1
System Information
  • Strapi Version: 2.5.4
  • Operating System: Ubuntu
  • Database: Postgres
  • Node Version: 14.16.0
  • NPM Version: 6.14.11

why this can happen?
video - https://drive.google.com/file/d/1zlfMfZpDmIr8sLxoI2rFLWKnQlVKmk4F/view?usp=sharing

2

Video has restricted permissions, I’ve requested access

3

Sorry, gave access
I also uploaded here Secure Cloud Storage & File Sharing Service | FEX.NET

4

I don’t know what happened, but it started working. https://new.sabotazh.com/
I also had a similar problem, in another project, there on some endpoints also returned 401 errors, but I did not understood the cause of the problem because the customer decided to stop the project.
Maybe you have some idea why this might happen?