Klopp's men had not lost at Anfield for 14 months in all competitions prior to a 3-0 defeat to Atalanta in the Europa League quarter-finals on Thursday. The German did not get the reaction he hoped for as Palace took an early lead through Eberechi Eze in a ragged first-half display from the home side.
Liverpool were much improved after the break but were undone by a familiar wastefulness in front of goal in recent weeks as Palace clung on for just their second win in 10 games. "It feels rubbish, 100 percent," said Klopp.
"First half we wanted to show a reaction from the last game. We saw a reaction, just not the one we wanted. You could see the team was not fully convinced. We lacked conviction." Defeat leaves Liverpool behind of Manchester City with six games of the Premier League season to go.