How long have you owned this lift? Has there been any work done on the lift recently? Usually the master cylinder linkage gets adjusted & it's good & doesn't need further adjustment until a master cylinder change.
It's not difficult to adjust if it needs to be. There should be at least a 1\2" free play the the pedal pad which you should be able to feel easily if you apply the brakes by hand. If there's less than that, chances are this will happen again.
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