Hi,
You can add this under Custom > CSS in the Customizer.
.page-id-389 #habla_window_div.habla_window_div_base {
display: none!important;
}
You can add another page id to the code to hide it on other pages.
eg.
.page-id-1 #habla_window_div.habla_window_div_base,
.page-id-389 #habla_window_div.habla_window_div_base {
display: none!important;
}
Here is how to locate your page id – https://community.theme.co/kb/how-to-locate-post-ids/
Hope that helps.