Vanilla Jar Log

[19:19:55] [main/FATAL]: Failed to start the minecraft server
joptsimple.UnrecognizedOptionException: o is not a recognized option
	at joptsimple.OptionException.unrecognizedOption(OptionException.java:108) ~[minecraft_server.1.15.2.jar:?]
	at joptsimple.OptionParser.validateOptionCharacters(OptionParser.java:633) ~[minecraft_server.1.15.2.jar:?]
	at joptsimple.OptionParser.handleShortOptionCluster(OptionParser.java:528) ~[minecraft_server.1.15.2.jar:?]
	at joptsimple.OptionParser.handleShortOptionToken(OptionParser.java:523) ~[minecraft_server.1.15.2.jar:?]
	at joptsimple.OptionParserState$2.handleArgument(OptionParserState.java:59) ~[minecraft_server.1.15.2.jar:?]
	at joptsimple.OptionParser.parse(OptionParser.java:396) ~[minecraft_server.1.15.2.jar:?]
	at net.minecraft.server.MinecraftServer.main(SourceFile:906) [minecraft_server.1.15.2.jar:?]