It started going wrong for them at that Wolves game, he played a jarg side and lost the winning mentality, since then they have been all over the place
Nothing to do with that, dropping out of the cup was smart (losing in the league Cup didn't effect them) ...
There's a few reasons:
Every team generally has a blip in form at some point in the season.
Losing Alexander-Arnold, and having to play Milner (Henderson) there, has weakened there right side, no pace to counter teams that that wing (and Liverpool counter attack a lot).
Lack of squad depth... They rely on the same players every week (no room for squad rotation)... City can freshen their team up, Liverpool have championship players on their bench...
Opposition... They seem to finally be having a go at Liverpool... Palace deserved better, but maybe they gave other teams belief that Liverpool aren't all that.
Pressure....to win a league you gotta handle the pressure that comes with that, alot of players can't....the next 4 weeks will show if Liverpool can...