Blockade
Freezing
noun, する verb
A sealed chain won't break or open so it gets in the way of everyone, forming a blockade. This can happen at banks too and it will result in them freezing your account!
ふうさ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
銀行が潰れて、預金が封鎖されてしまったんです。
The bank was bankrupted and my account was frozen.