Try this if you have Daemon tools try to disable it in your device manager.
Delete the exe files fc26.exe then repair the game again.
Try to update your EA app
set "Run this program as an administrator" under "Compatibility" tab through "Properties" for "EADesktop.exe". to got to Properties, right click on "EADesktop.exe" then click "Properties". path: "C:\Program Files\Electronic Arts\EA Desktop\EA Desktop\EADesktop.exe". run "EALauncher.exe"(same folder) or desktop shortcut
So your path must be the same where the game is installed. Look at your services.msc if something from EA of anthicheat has stopped or not running automatic. open the EA ports in your firewall. Or try delete the EA app then reinstall it.