Magento 2.4 var/log/system.log full of: Requested path _cache/merged/… is wrong (but is working)?

Or system.log in var/log is full of the following lines:

[2023-10-29T09:34:06.035507+00:00] main.ERROR: Requested path '_cache/merged/1c1655c7d6a29724ac0b8c8b3288f8cc.min.css' is wrong. [] []
[2023-10-29T09:34:06.036027+00:00] main.CRITICAL: Requested path '_cache/merged/1c1655c7d6a29724ac0b8c8b3288f8cc.min.css' is wrong. [] []

But the sites that’s using Smartwave Porto theme – is working perfect.
We are not sure why Magento is logging this error?!

If we do a “view source” in the browser, all paths to the sites CSS is working.
Also, the sites are working as the should.

How can we get rid of all these error messages in our system.log file?

Thanks,