In Opera Mail 1.0, build 1040 I lost whole year 2015 post, until last day I used it. But not in the folders of single accounts. In them are all messages visible and is possible to open them. Is there any possibility to delete something in OM to force OM to repair it?

So I solved it myself. It happend when I have not selected default browser. After selecting one is OK.

Hi, in my opera mail links in messages are blue and underlined, but when I clicked on it nothing happends. I have to copy and paste to Opera to see the page of link.
How to repair it?
V.