ADDING PHOTOS GALLERIES

Hello I'm a bit disappointed. I purchased the Lensation pro theme, and it does not include the ability to create photo galleries. So I installed the Catchgallery plugin. It doesn't really work, even if I use a classic block, it doesn't seem compatible with Wordpress 6.4.3 So I wanted to buy the pro version of catchgallery, but if it doesn't work in demo it won't work more with a paid version. I purchased an expensive theme and am left without the ability to simply create photos galleries. What is the solution ? You are not up to date with wp and with a pricy thème it should be easy to use a gallery plug in. THANKS to tell me what to do next. I did everything explan on you website, but with wp 6.4.3 no solution.