Countless Errors Holding my business back

I’ve been facing countless errors and problems one by one .
The website sometimes works then you decide to launch a new update in which messes up all my work.

1 – The Shop Dropdown menu isn’t organized like it used to be , its in a different order every time.
2 – Once I select a category in the shop menu it shows as completely empty although i have many products assigned to it.
3 – There’s 6 Product pages showing in the website , when i click the second or third page it only displays 3 Product Pages as shows in screenshots bellow.
4 – when i want to checkout it says there’s no shipping method , though i already added shipping methods.
5 – every once in a while when i go to the shop page it says “ERROR 404”

PLEASE Release a Stable Version . Too much updates are ruining allot of people’s work.