Not sure which folder to install Paypal addon

I have Upload the contents of the folder public_html/* to the corresponding path of my LiteCart installation.   into my already existing  public_html folder, however i don't think this is correct as i cannot see the Paypal module in the admin, any suggestions as to what i am doing wrong?

Just confirm that the module is in the includes/modules/ folder of your installation and you did it right.

thanks Paypal is installed succesfully thanks, next issue is the ProductFileAttach module, followed your instructions as per below 

3. Run the following MySQL Query in your favourite database manager i.e. phpMyAdmin:

CREATE TABLE IF NOT EXISTS lc_products_files (
  id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
  product_id INT(11) UNSIGNED NOT NULL DEFAULT '0',
  file VARCHAR(128) NOT NULL DEFAULT '',
  filename VARCHAR(128) NOT NULL DEFAULT '',
  mime VARCHAR(128) NOT NULL DEFAULT '',
  checksum VARCHAR(32) NOT NULL DEFAULT '',
  priority INT(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (id)
);

Done!

but now when i try to edit product I have fatal error message with database as follows 

Fatal error: 1146 - Table 'northea2_lite423.lcmv_products_files' doesn't exist select * from lcmv_products_files where product_id = 1 order by priority asc, id asc; in ~/includes/library/lib_database.inc.php (Line 166)

Is there anyone available that i can pay small fee to install add ons? thanks

Wrong forum topic.
Go here https://www.litecart.net/en/addons/36/product-file-attachments