Ctx: WhatsApp Chat + Marketing

This app made my site so slow that customers started complaining about the issues. I had to spend a lot of time to trace that this app is the culprit and uninstalled it.

it's not working properly, whatsapp show that message invalid, we can't ppen the link, or stuff like that

I need help,because don´t install the app whats app

- Whatsapp chat feature doesn't work, it adds extra numbers to my phone number so customers are unable to contact me.
- Whatsapp share button requires a code which I tried several times to put in but can't get it to show up.
- Whatsapp sticky bar has a bad design and although I input a text, it doesn't show up in the bar.
Overall useless app, why would I bother to pay for an upgrade if the basics don't work?