Hello, Cristina,
Thank you for the reply.
Are you referring to the button in the screenshot provided https://prnt.sc/ISxs_K18tXYW? This button is part of the PayPal plugin. Our theme is compatible with this plugin, however, if you require support for PayPal functionality or compatibility issues between this plugin and other third-party plugins, you will need to contact the support team of the plugin directly.
We appreciate your understanding.
Kind Regards,
8theme team