Answer:

ERRS

AnswerCrossword Clue
ERRSBlows it
ERRSBoots one
ERRSDrops the ball
ERRSFalls off the wagon
ERRSFlubs
ERRSFouls up
ERRSGoes astray
ERRSGoofs
ERRSLays an egg
ERRSMakes a boo-boo
ERRSMuffs it
ERRSKicks a grounder
ERRSMakes a mistake
ERRSMisses the mark
ERRSPulls a boner
ERRSActs human
ERRSMuffs
ERRSSlips up
ERRSBollixes everything up
ERRSCreates a snafu
ERRSDrops an easy one
ERRSScrews up
ERRSCauses a boner
ERRSFucks up, more politely
ERRSNeeds correction
ERRSMuffs one
ERRSShows humanity
ERRSIsn't perfect
ERRSSins
ERRSCommits a blunder
ERRSBlunders
ERRSBoots a ball
ERRSMisdoes
ERRSMakes a goof
ERRSFlubs at Fenway
ERRSIs human?
ERRSGets a scoreboard E
ERRSActs human?
ERRSBlunders at Fenway
ERRSIs mistaken