I’m pleased to announce that we successfully moved to a new, bigger server, together with another forum. (My husband’s. ) This way we can benefit from better hardware without a big jump in price!
A bit of read-only and downtime was necessary to make the move, but everything seems to be functional now - please let me know if you find some anomalies here and there. I had to remove some themes as a troubleshooting step, but I will re-add them soon.