Ecommerce crashes very often

I really like Ecommerce - but besides the lack of ready-to-use subcategories, it crashes very often. I have about 150 articles manually brought into the store system, and I’d say I get the “OOPS, Something went wrong”-message about every 10th to 15th article I set up…

Some inputs don’t react to inputs every time (like adding products to categories), and after crashing it takes some time to reload all the articles. Time I would rather spend with bringing the project to an end…

UPDATE: Right now its completely impossible to add products to categories - the input is ignored…