You have a Javascript conflict at http://kodulehetegemine.ee/ that you do not have at http://uuskoduleht.kodulehetegemine.ee/. You clearly have some differences between the two sites. Looks like you may be using a SEO plugin at http://kodulehetegemine.ee/ which you are not using at http://uuskoduleht.kodulehetegemine.ee/.
Do you have Akismet installed? Try deactivating it.
That worked for me.