I took a look at your website but unfortunately wasn’t able to reproduce this issue. The modal opened just fine, and I could see no errant X at the bottom of the page. Could you please send me a screenshot of that, maybe?
I created an account but unfortunately I couldn’t see that issue. Which browser are you using? Also, which version of Newsletter and Leads addon are you currently on?
I can replicate it in all 3 browsers. Chrome, Safari, FF.
I logged in as user: test
pw: YdU!W6$B&4&d2QDiIoF3&auw
Current plugin versions:
Newsletter Version 8.9.3
Addons Manager and Support Version 1.3.7
Amazon SES Delivery Addon Version 1.5.8
Automated Newsletters Version 4.8.5
Elastic Email Delivery Addon Version 1.2.7
Extended Composer Blocks Version 1.6.0
Forms Version 1.1.3
Google Analytics Version 1.3.0
Import/Export Version 1.5.9
Leads Addon Version 1.6.0
Reports and Retargeting Version 4.7.0
Subscribe on Comments Version 1.2.0
WP Users Addon Version 1.4.6
I succeeded in replicating the issue. I confirm this. Unfortunately, this is not caused by our plugin itself, it is probably another plugin / theme conflicting. There is no easy way to troubleshoot this, but I suggest you to do the following: briefly deactivate plugins one by one (not our addons) and check if the closing “x” disappear by doing a page refresh after each deactivation. Also remember to flush cache if you have that in place.