error with woocomerce and wp-admin links

The page have several errors:
1. In the online-store you can’t finish an order. You can select the products and add them at the shopping cart but after writing the direction and the credit details it appears an error saying that the transport method is not selected but there is no option to do that.
The problem comes that in the wp-admin you can not enter woocomerce administration because the link goes to the webpage saying : “It seems that this page does not exist. It seems that the link you pointed here does not work. Do you want to try a search?”.The only link you can access from the woocomerce in the wp-admin is the one with the orders done.
2. At the same time you can not edit or add a product since it starts charging but never ends. (There is enough space to save the data of the webpage).

To solve the problem, I thought about exporing all the products with a CSV file , you can do it but it starts charging and never ends so you can’t download the file). Since the problem seemed to be from the woocomerce plugin the idea was to delete it and install it again with the products of the CSV file but the problem also comes that wp-admin don’t let you install new products since same as before it appear the message “It seems that this page does not exist. It seems that the link you pointed here does not work. Do you want to try a search?”. Not only this happens with the plugin and woocomerce page of the wp-admin but also with others such as analysis, marketing…
The problem seems to be that most of the links of the wp-admin are broken and because of that nothing from the woocomerce and online shop works.

The page I need help with: [log in to see the link]