It is not permissible to pray behind an imaam who is a charlatan and liar

No File Exists
Check below answers in case you are looking for other related questions:
Meaning of the hadeeth, “The imam is a liable one”
An imaam is guilty of some secret sin; should he continue in his position as imaam?

No File Exists
Related Answers:
Praying behind someone who works in a riba-based bank
Ruling on saying Ameen before the imam
Faasiq (evildoer) leading the prayer
Meaning of the hadeeth, “The imam is a liable one”
An imaam is guilty of some secret sin; should he continue in his position as imaam?

Recommended answers for you:
Eating food that is distributed on the Prophet’s Birthday (Mawlid)
Ruling on taking boyfriends or girlfriends
Is there any difference between tahajjud and qiyaam al-layl?
Protection From the Jinn
What about the mark on a person’s forehead caused by sujood?