Could you take a look at these emails ? :
First of all I want to apologize for my slow reply. I'm really sorry about
that, but I've gone through a computer (system) crash. Fortunately I
haven't lost all of my data but it's been a while to get everything in order
I also would like to thank you for your kind response to my previous email.
I regret to say that I won't be able to come to Berlin due to various
reasons. Anyway, I was wondering how much the enrance fee is.
Let me know if you can.
I think that's all for the time being. Once again, thank you and... keep
your fingers crossed for me and my work
and by the way - how can I say that my computer/Windows well... crashed ?
it's been a while- taken
due to various
reasons- for (sounds better in this kind of text)
My computer failed/crashed/died