Hello,
Find the below code in your Theme Options > Custom CSS
.products-loop .ajax-content, .products-loop {
display: flex;
flex-wrap: wrap;
flex: 1;
}
and replace with the following
.products-loop .ajax-content, .products-loop {
display: flex;
flex-wrap: wrap;
flex: 1;
width: 100%;
}
Or remove custom code related to your products page at all.
Regards