Trouble logging in??

I had this happen to my Demon Slayer a couple months ago. It was randomly "locked out" due to a server crash or whatever and I couldn't get back on it for a couple hours. I was able to get on every other character on my account just fine.

This exactly is what is happening to me. After further trying, I'm just locked out of my IceMage. I was thinking maybe the map I logged out at got glitched or something.