Simple Permalinks Question.. I guess?

Hi guys..

I’m having a small problem, but shouldn’t take long to solve. I’d like to use a custom permalink structure with only the category and postname, wich means:

/%category%/%postname%/

So, should be ok.. but it’s now generation a decimal aswell.. see link below.

https://portrait19.com/news/under-construction-3/

the link should be going to:

https://portrait19.com/news/under-construction/

So.. without the “-3”

Anyone got the solution to help me?

Thanks in advance.