How can I log in to my Minecraft account again?

Yesterday I played a nice round of skywars on the Gommeserver when suddenly I got the message that I was banned for chopping (I did not hack). I did not think anything of it and just kept playing on my second account and also a bit on my main account on my own server. When I tried again on my main account to log into the Gommeserver came the message that I should restart my game; which happens sometimes. But when I did that, I was logged out of my account and could not get in anymore. I reset my password but it did not work.

Basically, some info is missing, can't you log in to your Minecraft Launcher? Have you tried signing up on the Mojang site? Do the dates match?

Otherwise, you should also contact Mojang Support.