Hi @lesterleandro1966
My WooCommerce installation stopped working.
error saying: Installation failed: folder already exists
As a first step, please navigate to your /wp-content/plugins/ directory, and rename the woocommerce
folder to woocommerce-old
Then try reinstalling afresh.
The other way is to uninstall WooCommerce completely and reinstall it afresh.
Normally, when you uninstall WooCommerce, only the plugin is deleted but your settings and other data (orders, products, etc) persist in a database. It takes an additional destructive step to delete everything. We’ve explained further in this guide: https://docs.woocommerce.com/document/installing-uninstalling-woocommerce/#uninstalling-woocommerce.
* Important: We recommend making a full backup of your site and database before making major changes. You could consider using a service like Jetpack or installing a plugin like UpdraftPlus. If something goes wrong you can restore your site to the previous state.
Let us know how it goes.