we are running an online B2B store, started from German now for one year.
Most of our traffic and turnover was just generated by emails that we sent to a very targeted and selected audience.

Now, we set up an English version as well and wanted to start sales in English as well. Starting from a mailing list that is very targeted as well brought 0 orders.
Now we use different channels like FB page, FB private account, classified ads, a few forum links, some directory links.
Unfortunately, there is almost no traffic on the English version and way worse: No orders.
In Germany it worked totally different.
How can I deal with that issue?
What would be the best way to go and why exactly is Germany so different from English speaking countries?

Thank you in advance
Bye, Chris