You're missing the OTS_Ats1.dll file. It's a plugin that most of the modern trains use, but it isn't included in the default openBVE download. I honestly have no idea where you can get a copy of the file. I have a copy of it, but unfortunately it's on a computer a couple hundred miles away from me. I'll try looking around and I'll see if I can find the file somewhere
Also, apology for the late replies. Everybody right now is either in work or in school, so it gets pretty quiet here.