Need Help With Deobfuscating

Can someone please help me, I have this phisher that i need to crack but my friend said it was impossible it was made with visual basic i used .net reflector but it doesnt work i get this error iv tried all kinds of decompilers but still nothing if any one can help me please pm me. Idk if this is the right place if its not please move.
thanks.

You want to LEECH a PHISHER. That's a double-no.

u could try wireshark
or fiddler