Access the File Manager through your site’s FTP address or via Cpanel.
On the opened page, enter the public_html > app > code folder.
Click Upload in the upper left corner and upload the Module file in the opened window.
Right-click on the uploaded file in File Manager and Extract it.
Return to the Cpanel dashboard and go to Terminal.
In the opened window, type the following commands in order:
Terminal window
cdpublic_html
chmod+xbin/magento
bin/magentocache:flush
bin/magentosetup:upgrade
bin/magentocache:clean
bin/magentocache:flush
bin/magentocron:run
In the Magento Admin Panel, click Stores > Configuration from the left menu.
On the opened page, go to the Sales > Payment Methods section.
On the opened page, set Enabled to Yes, enter your SX Key and Secret Key information and save. This way, you have integrated the NKolay SanalPos module into your site.