For the start you should enable debugging in the search type so you will see the query that is produced, than it shoudl be more clear to you what part is not working.

Thanks Klas,

I enabled debugging but I can't see the ORDER BY command. The debug show only the query written inside the search query field. It is like if i'm using the search query field, I can only use the ORDER BY command inside the query field. Seems that I can't use the dinamic or static ordering of seblod. Do you know if there is an incompatibility betwen the search query field and the ordering options of seblod?

I also tried to use the ordering tab and make a descending static ordering on a field but it doesn't work. Of course before I have enabled the default order in the configuration tab. Also in this case I can't see the order by commad on the debug.

Query form search query replaces the query produced by the Seblod and that includes order statements, you need to make it by yourself using variables from the URL, please see the following tutorial for examples how t use variables in the Search query

https://www.seblod.com/resources/tutorials/using-the-search-query-field-plugin