I have checked to make sure Crown Crates keybinding is bound....I changed it to ` because F3 was getting in the way of my game play. I press ` and he says basically...goodbye...I cannot open the crown crates window at all ... any ideas??
You may have an add-on loaded that is causing issues with the crown crate window. Press the Esc key to enter the add-ons submenu and disable your add-ons. Once disabled, please see if you can now open the crown crates.
Add-on "No Thank you" prevents the crown crates window from opening (depending on particular settings). Just disable it and give it another go. At least it's worth a try.
If that doesn't work, or you're not using add-ons, then switch the crate command back to the default setting, open the crates, and switch the setting back to your preferred key again.