The case is unattractive, it doesn't look striking or stand out, it looks cheap, under $50. The wheels stick out so will get caught on things.
There are too many features. People want lightness and strength in the cases, not gimmicks.
The bag strap looks impractical and looks like it would pop off easily.
The space inside looks very compact and impractical and not enough to carry even a weekend's clothing.
The cup holder is pointless.
The website is badly written, some things don't make any sense in English - you need a professional who is fluent in English to overhaul the website.
There is no price. People won't buy it if they don't know how much it costs.
You have clearly not done any research into what people actually want from their cases.