Between 1991 and 2018 Liverpool did record:
Champions League: 2005
UEFA Cup: 2001
European Super Cup: 2001, 2005
FA Cup: 1992, 2001, 2006
League Cup: 1995, 2001, 2003, 2012
Community Shield: 2001, 2006
In addition:
Champions League runner-ups:
2007, 2018
First Division/Premier League runner-ups:
1991, 2002, 2009, 2014
First Division/Premier League third place:
1996, 1998, 2001, 2006, 2007
Champions League semi finalists:
2008
It's rather willfully ignorant to call that a complete failure considering that the club was never a spending power in those times.