Minecraft doesn't work

My game keeps freezing even tho my fps is perfectly fine. This issue has started since the 1.13 aquatic update.
AL lib: (EE) alc_cleanup: 1 device not closed
Picked up _JAVA_OPTIONS: -Xmx256M

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Server-Worker-3"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Server-Worker-10"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "Client thread"
23:01:01.060
Process crashed with exit code 1