Oil Spill but on Engine of Ztrak mower

I am new to operating a John Deere Ztrak. I inherited a 2020 Ztrak Z355R. I used it for the first time this past weekend and worked perfectly fine. I noticed the next day there was oil on the floor. After examining the equipment I could not find the source and did not see any obvious breaks/leak source. What was odd about this was the amount of oil surrounding the top of the engine. I am new to the ride on mowers, but this does not seem normal. Should I be concerned this is something to do with inside the mower or as simple as the a cap was loose? I checked the caps and they were all on, but the amount of oil on the engine and underneath was concerning and my thoughts are has to be from a loose cap. I am afraid to use it again in fear additional damage could be done. Any help would be appreciated and/or if this is a bigger issue that I should bring into a dealership/service company to look at. Thanks.