Behind the fall is the correction of bitcoin. It goes down and the whole market also goes down but I think this is a temporary phenomenon especially since the Ethereum development team is doing an update under the name Ethereum 2.0 and there will be a hard fork ahead.
And this is really very cool news, because today there are very high hopes at ETH after the last fork of the ETH will have something very weighty that in general it will be possible to compare BTC already, therefore we are trying to fix everything now