Broken page links and product feed does not upate

Hello

First and foremost we need someone based in the uk so that it is easier to get hold of each other by phone if needs be and must speak good english.

Im looking for 2 separate quotes for my e-commerce store.

It uses Prestashop as its platform.

The first problem is that the links between pages on my website are broken. When you click on a link to take you from one page to another the following error occurs “404 not found error requested url not found on this server apache server at (website address) apache 80.”

The second problem is as follows:
My website is an online clothes store, I am a drop-shipper and I have an automatic product feed connected to my supplier's system that is meant to update the stock, price and quantity levels on a daily basis, but the person who initially set up the website for me did not configure the feed correctly and it hits an error when trying to update the stock.
The feed should automatically update twice a day.

We only have a small budget so will probably go for the lowest offer.

Many thanks