Last post Jul 06, 2017 01:58 AM by Eric Du
Jul 04, 2017 05:17 AM|santhakumar|LINK
Uninstall the SCOM Agent Manually on the SharePoint Servers.
Delete the Microsoft Monitoring Agent from "C:\Program Files\" folder on your SharePoint Server.
Restart the Server and try to open the CA and Default sites now.
Jul 06, 2017 01:58 AM|Eric Du|LINK
According to your description, as far as I know, this issue is related to the SharePoint, I think you could get a suitable help in this forum:
SharePoint Support Forum:
Also I found a tutorial for your reference, please check:
Loading this assembly would produce a different grant set from other instances. (Exception from HRESULT: 0x80131401):