how do i re install the stock keyboard on rooted a lg leon

i was messing around with the root access and deleted something i shouldn't have. now the keyboard doesnt pop up anymore, it still has the select input option i the notification center, so i had to install a third party keyboard but i want the stock keyboard back please help. the model number is LG-H345, android version 5.1.1, kernel version 3.10.49, build number LMY47V, and the software vision H34510f

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