"GreyMagic.InjectionDesyncException: Process must have frozen or gotten out of sync: Injection Finished Event was never fired"
Is the PoE client minimized? This is a typical error of EB not finding the PoE client. Make sure PoE is up and running in a visible window.
If that does not work, then download a fresh copy of EB, install it into a fresh directory, and launch from there. This is the 1st troubleshooting method.
wimm