i activated the Phoca POS Menu Link. The POS looks OK.
But but over each product to sale, i got this error :

https://imgur.com/oA9os1h
i don't know what this means.
Thank you for your help
Best Regards, Nicouth2000
Kind regards,Possible design and function issues
If the following warning message is displayed on your site
Warning: Bootstrap Javascript library has been loaded more than once. This can cause design and function issues on your site. See Phoca Cart documentation how to avoid it.
then it means that Bootstrap Javascript library has been loaded more than once on your site. It could be loaded by template, Phoca Cart component or Joomla! system. There are more ways how to avoid it:
1) Disable loading of Bootstrap Javascript library in template if there is a parameter for this feature
2) Disable loading of Bootstrap Javascript library in Phoca Cart component - there is a parameter in Options for this feature.
3) Disable loading of Bootstrap Javascript library in Joomla! (mostly this is necessary because this library is obsolete). Download Phoca Upgrade System Plugin, install and enable it in Plugin Manager. In Options of this parameter enable Remove Obsolete Bootstrap Javascript parameter.
Start with 3) and continue to 2) or 1) when this message will be still displayed on your site.