I found out that now by default only TLS 1.3 was enabled (instead of 1.2 & 1.3 before), this should not have an impact for users with up-to-date systems but for now I re-enabled the 1.2, as it seems that some bots (e.g. Amazon) do not support the 1.3, that was filling the logs with errors. This allowed also me to find a new bot which identifies itself as Firefox 71.0