2 errors from the plugin

Hello,

I am getting 2 errors while using the plugin described bellow.
Do you have any knowledge on this and advise on how to fix it please ?

Error 1:
Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://sheet2site.com') does not match the recipient window's origin ('https://mysite.com')

Error 2 :
Uncaught DOMException: Failed to read the ‘localStorage’ property from ‘Window’: Access is denied for this document.
at https://sheet2site.com/assets/js/page.min.js:95:25974
at Object.<anonymous> (https://sheet2site.com/assets/js/page.min.js:95:27697)
at o (https://sheet2site.com/assets/js/page.min.js:1:110)
at Object.<anonymous> (https://sheet2site.com/assets/js/page.min.js:1:1151)
at o (https://sheet2site.com/assets/js/page.min.js:1:110)
at Object.<anonymous> (https://sheet2site.com/assets/js/page.min.js:1:1035)
at o (https://sheet2site.com/assets/js/page.min.js:1:110)
at Object.<anonymous> (https://sheet2site.com/assets/js/page.min.js:1:929)
at o (https://sheet2site.com/assets/js/page.min.js:1:110)
at https://sheet2site.com/assets/js/page.min.js:1:902

Thank you