Answer:

err

Answer	Crossword Clue
ERR	Bobble the ball
ERR	Go wrong
ERR	Mess up

ERR	Miscalculate
ERR	Muff it
ERR	Slip up
ERR	Be human
ERR	Be human?
ERR	Be off the mark
ERR	Be sadly mistaken
ERR	Blow it

ERR	Do the wrong thing
ERR	Drop a popup
ERR	Go astray
ERR	Goof
ERR	Make a blooper
ERR	Make a mistake
ERR	Misjudge
ERR	Misspeak

ERR	Stumble
ERR	Boot one
ERR	Commit a blooper
ERR	Commit a faux pas
ERR	Drop the ball
ERR	Flub
ERR	Goof up
ERR	Make a foozle

ERR	Mistake
ERR	Be off-base
ERR	Screw up
ERR	Stray
ERR	Status before statehood: Abbr.
ERR	Make a boner
ERR	Misfire
ERR	Say something cringeworthy

ERR	Slip a cog
ERR	Get it wrong
ERR	Act proverbially human
ERR	Mishandle
ERR	Miss the mark