My family is spanning several countries since my wife and I are not from the same country. Can I in any way asure that the invitation sent out from the system arrives at the person in the correct (of the 34) language?
Currently the invitation will always arrive in the language that you are using. So if you speak the language that you want to invite in, you can temporarily switch to it before inviting, invite and then switch back. I apologize for these gymnastics. We are actually working right now on an improvement that will allow you to choose the language of any invitation before sending it. This will be available in the near future.
I have a problem with the invitation language. I used MyHeritage in estonian, invitation gone in russian (!?), I switched language to english, but nothing happened, again russian! Can you help me? How can I send invitation in english?
I see in our database that your language is set as English. New invitations to new members should be sent properly in English, if you initiate them from the site, and not from Family Tree Builder. Visit your family site and click 'Invite more family' from the main page. I checked the situation in more detail and saw that you invited your wife to your site 2 days ago. Indeed, she received the invitation email in Russian, which is not what you intended.
I fixed your wife's language in the database from Russian to English. I advise her to visit MyHeritage.com and use the flag at the bottom right corner of any page to change the language to the one she prefers (Estonian or English, for example). It would be best for your wife not to click links in previous invitation emails you sent her because they contain the wrong language (Russian) encoded in them. To visit the site she should go to www.myheritage.com in the browser, and log on using her email address, and she can use the 'Forgot password' link if the password is not known to her.
If the problem happens again when you invite additional members, let me know.
Also let me know if you remember how you sent her the first invitation, so I will try to retrace why it went out in Russian.
Sorry for the inconvenience, and please help us make the experience better for other users in Estonia.