Problem with image resize

Hello Jacob,

first, thank you for this great plugin!

I have a problem: after installing or changing something that is not related to WPPA, the images now are no longer square clipped. I have regenerated the Thumbnails several times, changed the sizes, de- and re-installed WPPA… it doesn’t change. I have also de-activated every other plugin, to check if something is interfering. It didn’t change the situation.
What is the cause for this? And most of all, what the solution?
https://its-our-world.com/wordpress/?page_id=16

Thanks alot!

Best wishes,
Rumi

https://www.ads-software.com/plugins/wp-photo-album-plus/