The 7.3.31 version released an hour ago to the WordPress site should resolve the error you were seeing in logs. Thanks for the report!
https://ww.wp.xz.cn/plugins/aweber-web-form-widget/
Hi Kyle,
You were given some incorrect information.
The “AWeber for WordPress” plugin is managed by AWeber directly, you shouldn’t have been sent back to the forum here. You did the right thing by reporting the issue directly to our support team.
Our engineering team took an initial review of the error and it’s really just noise. It’s due to your Jetpack plugin running the AWeber plugin in a way that it’s not intended to be. Nothing is broken and both plugins are working fine. We’ll get a release out to suppress that notice so you stop receiving the emails about it. Will let you know when that’s live.