how to change a permalink?

Are you using MultiSite?

That is, are you trying to get https://www.arunasworld.com/?works=ryanair-2 to redirect to a subsite at https://www.arunasworld.com/works/ ?

https://www.arunasworld.com/?works=ryanair-2 does not show any photos on my website page, just a text. It is very strange, because they (photos) shoud be there.
That’s why I would like to change this link https://www.arunasworld.com/?works=ryanair-2 to, for example, https://www….com/travel/finland/tampere/ryanair or https://www….com/ryanair.htm
How can I do that? Or how can I resolve this problem?

I check at https://www.arunasworld.com/wp-content/blogs.dir and it doesn’t LOOK like you’re using MultiSite (which is to use multiple websites managed from one WordPress installation), so this post is in the wrong place.

I’m moving it to troubleshooting.

Thank you, Ipstenu, for your help. No I see I should use MultiSite. I am newbie in SEO & similar things, and I try to understand something… ??
You can delete this post.

No you should NOT use MultiSite unless you NEED it ?? I was trying to point out that a post in the MultiSite SECTION should be using MultiSite. And if not, you get moved. Which I did.