Hello,
Regarding Instagram issue: this bug will be fixed in the nearest theme update which is released the following week.
Regarding Register button: this bug occurred after Mailchimp plugin update. Please add this code to custom CSS area in the Theme Settings in order to correct:
.mc4wp-form>div>p:first-child {
-webkit-box-flex: 1;
-ms-flex: 1 1 200px;
flex: 1 1 200px;
max-width: 290px;
width: 100%;
margin-top: 20px;
}
.mc4wp-form>div>p {
margin-left: 25px;
margin-right: -17px;
}
We shall fix this bug in one of our nearest updates as well.
Best Regards