WooCommerce modify all Permalinks

Hello Guys,
2 days ago the server hosting my domain broken down for about 7 hours. 🙁

Then they resolved the issue but after checking my website all the plugins were deactivated.

i’va activated everything and woocommerce now is creating a strange permalink on all pages of the website, like this:

http://www.mywebsite.com/?v=04c19fa1e772

i’ve modified permalinks in wordpress and updated .htaccess…

problem still the same.

Any suggestion?

thanks a lot for your help.

MarioK