Do the following:
Turn your HTC On.
Holdbfhe power for 15-20 seconds.
Release, when the device flashes.
Press and hold the volume down button.
Press the power button for 3 seconds, and release.
Keep your finger on the volume down button.
This should take you to bootloader, download the latest
TWRP For your HTC.
Flash it with fast boot flash recovery twrp.Evita.version here.IMG
You should now be able to enter Recovery. I suggest getting the Avatar ROM, experiencing no current errors IMO If this has worked, please reply.