previous link in portfolio

Hi,

i succeeded in creating multiple portfolios.
For one called “Les parisiennes”, the previous link goes to the portfolio page (which is wath i expected)
For all others, unfortunately the link goes to the image itself.
the difference on the link is that for the first portfolio, the portfolio name is incldued in the link whereas it is not the case for others.
exemple :
for one image where it does not work, image link page is : https://www.sandrinebelindenormandie.fr/dsc06312/
for one where it works :
https://www.sandrinebelindenormandie.fr/portfolio/serie-les-parisiennes/placefurstenberg/
i tried to recreate the gallery but it did not fix my issue.
Do you have any idea ?

by the way, is it possible to change Blog title page ?

thanks

Willy

The page I need help with: [log in to see the link]