Yes, it is this GDPR plugin.
The problem: This doesn’t work because of the quotes from the link a href inside the quotes from wpgdprc. It skips everything after the second ” so it ends with <a href=”:
[wpgdprc “By using this form you agree with the storage and handling of your data by this website. For more info please see the privacy policies“]
I hope this was clearer.
BTW I had to switch from Contact Form 7 to another plugin because of an additional problem: On mobiles and tablets, it wouldn’t send the message. It just kept spinning. I read in the docs that this is due to bad interaction with another plugin, but I couldn’t locate which. WPforms works just fine. If these two issues could be solved I would like to switch back to Contact Form 7.