REQUIRED for all errors and issues:
a) GATK version used: 4.4.0.0
b) Exact command used: gatk-4.4.0.0/gatk VariantAnnotator     -R /home/databench/GRCz11_RefData/GRCz11.fa     -A SnpEff     --variant Affoutputf_raw_variants.vcf     --snpEffFile Aff.ann.gatk.vcf     -L Affoutput_raw_variants.vcf     -o Aff.gatk.vcf
c) Entire program log: Using GATK jar /home/databench/gatk-4.4.0.0/gatk-package-4.4.0.0-local.jar
Running:
    java -Dsamjdk.use_async_io_read_samtools=false -Dsamjdk.use_async_io_write_samtools=true -Dsamjdk.use_async_io_write_tribble=false -Dsamjdk.compression_level=2 -jar /home/databench/gatk-4.4.0.0/gatk-package-4.4.0.0-local.jar VariantAnnotator -R /home/databench/GRCz11_RefData/GRCz11.fa -A SnpEff --variant Affoutputf_raw_variants.vcf --snpEffFile Aff.ann.gatk.vcf -L Affoutput_raw_variants.vcf -o Aff.gatk.vcfc
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/broadinstitute/hellbender/Main has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:757)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:601)

It seems that it is a java error. But I am unable to fix it. Can you please help ?