Вот что выдают логи
[11:49:43] [INFO]: Launching client <WONDERLAND>
[11:49:43] [INFO]: Minecraft version: 1.12.2
[11:49:43] [INFO]: Performance mode: enbaled
[11:49:43] [INFO]: Memory size: 1646mb
[11:49:43] [WARN]: Java binary was not found! Trying to launch with preinstalled version!
[11:49:43] [INFO]: PRE validating context...
[11:49:43] [INFO]: Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
[11:49:43] [INFO]: Unrecognized VM option 'UseFastEmptyMethods'
[11:49:43] [INFO]: Error: Could not create the Java Virtual Machine.
[11:49:43] [INFO]: Error: A fatal exception has occurred. Program will exit.
[11:49:43] [WARN]:
ru.excalibur.launcher.t.I: process hasn't exited
at java.lang.UNIXProcess.exitValue(UNIXProcess.java:421) ~[?:1.8.0_261]
at ru.excalibur.launcher.j.e.k.H(b:10) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.j.e.k.H(b:128) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.j.e.e.H(ng:173) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.j.e.E.H(uj:185) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.j.e.E.H(uj:397) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.j.e.E.g(uj:197) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.t.e.e.a.H(oa:101) ~[launcher_build_59.jar:?]
at ru.excalibur.launcher.t.m.run(ma:147) ~[launcher_build_59.jar:?]
[11:49:43] [INFO]: Sending notify...