507,523 error

Hi, I work in IT and we have several users in conflict with these following 2 problems (507: 507) and (523: 523) The following solutions have been applied, but we still have the conflict.

https://helpx.adobe.com/mx/acrobat/kb/cant-view-pdf-web.html

https://community.adobe.com/t5/acrobat/523-error/td-p/10960038?page=1

https://community.adobe.com/t5/acrobat-reader/what-to-do-about-error-message-507-507/td-p/7483788?page=1

CPU specifications:

Acrobat Reader DC v.2020.006.20034

Windows 7 64bit

Internet Explorer 11

I would greatly appreciate your support in advance thank you.