All contacts gone on KAZAM Trooper 540

[AC Question]

I turned on my phone today to find that most of my contacts had gone, and I'd been logged out of play store and some other things. There were still 2 contacts still there, but they weren't ones saved on my sim card (those had also been wiped), they were a couple of the ones saved on my phone. Is there any way to get all of my contacts back? My phone is a KAZAM Trooper 540.