Previously honor 4, stops playing on this server, now Honor locked?

Hi everyone, I'm currently studying in the UK so I have been playing League on the EU server. My main acc is still in NA, and I often play it when I go back to the US for the holidays. The last holiday ended on the 11th of August, which means that was the last day I played a game on my NA account.

My honor level was previously Honor 4 (or maybe 5 don't remember) and when I logged onto the account today it says Honor locked?? Is this suppose to happen? I grinded that account to Gold just so I can receive end of the season rewards, will I still be able to get it?