Berean Standard Bible (BSB)
They only had some contentions with him regarding their own religion and a certain Jesus who had died, but whom Paul affirmed to be alive.
World English Bible (WEB)
but had certain questions against him about their own religion, and about one Jesus, who was dead, whom Paul affirmed to be alive.
Strong's King James
But{G1161} had{G2192}{(G5707)} certain{G5100} questions{G2213} against{G4314} him{G846} of{G4012} their own{G2398} superstition{G1175}, and{G2532} of{G4012} one{G5100} Jesus{G2424}, which was dead{G2348}{(G5761)}, whom{G3739} Paul{G3972} affirmed{G5335}{(G5707)} to be alive{G2198}{(G5721)}.
The F.O.G *
(19) But they had some issues with him about their own religious deities and about a certain dead man, Yeshua, whom Paul claims is alive!
The F.O.G Message *
Young's Literal Translation
but certain questions concerning their own religion they had against him, and concerning a certain Jesus who was dead, whom Paul affirmed to be alive;