What is "Freelancer.exe locked primary surface"

could this be causing a problem to server, hope not. when all started acting eratic then it crashed i decided to look at eventvwr.msc. i found this Win32k (Win32k) details Application Freelancer.exe locked primary surface 9 times. 3 times shown 9.29.33am 9.30.37am and 9.35.22am. this all means nothing to me but it will maybe to someone there team appreciate your advice

thats basically all huor what i wrote but now it,s happened twice again with server going down and nothing in eventvwr so it might not be a cause