Language Cloud additional package - where to find it?

Hello, I'm using Trados 2021 and my Language Cloud suddenly stopped working. I've already figured out from the previous forum discussions, that I exceeded the characters limit and have to buy some additional package, unfortunately I can't find any subpage with packages neither on my SDL account nor on the Language Waever account. Could someone please paste me some direct link or guide me to the purchasing process of this additional package? It's quite urgent, actually. Thx in advance.