Paysafe Software Developer interview questions

I had one coding challenge on Hackerrank, then I got a call a few days later, scheduled an interview for next week. The interview itself was fairly easy (since it was for an internship and they only required basic Java knowledge), they asked me to solve a simple problem on a whiteboard and then asked me some more basic computer science and Java questions, some of which I couldn't answer. The interview was 90 minutes. They also explained stuff about the workspace and culture and so on.