Installation Issue - Long URL when using Wordpress on same server


I have installed Omeka and nearly everything works perfectly. I am only having a problem obtaining a simple URL. I would like to obtain but I get instead

I know this issue comes from the fact I have Wordpress installed on the same server ( because I have already installed omeka on another server without wordpress and eerything works perfectly.

I have had a look at the different threads on the forum and know that this might come from the different .htaccess used on my server (the first one is and the second one is

Do you know where this could come from?

Thanks a lot for your help.