Posts of portfolio do not appear = "page not found"

Since I moved my site done on localhost to its online version ( some issues appear ;-(
such as this :
when I want to see a particular post of the portfolio (which is ok on the home page), the clicking on it leads to a “page not found”.
Strange, as the address is correct (ie

has anyone got an idea ?
thanks a lot,

Hello there,

I hope you are doing well today.

When it comes to site migrations, these kinds of issues can occur.

Please use the following simple guide to reset your permalinks:

Best Regards,

congratulations ! You found the solution :wink: