Deobfuscation failed

[iXanadu13]

When I use the latest build to deobfuscate a file, I got an error which tell me to open an issue on github.
feedback of "detect"

D:\deobf>java -jar deobfuscator.jar --config detect.yml
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Loading classpath
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Loading input
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Detecting known obfuscators
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator -
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - RuleHideAccess: Stringer most likely uses a seperate class to decrypt the encrypted calls. It then calls the encrypted class directly or through invokedynamic
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator -    Found potential hideaccess decryptor class Long/long/ago/there/was/f
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Recommend transformers:
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - (Choose one transformer. If there are multiple, it's recommended to try the transformer listed first)
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator -    com.javadeobfuscator.deobfuscator.transformers.stringer.HideAccessObfuscationTransformer
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - All detectors have been run. If you do not see anything listed, check if your file only contains name obfuscation.
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Do note that some obfuscators do not have detectors.

D:\deobf>pause

config.yaml

input: MCG_a2r.jar
output: output.jar
detect: false
transformers:
  - com.javadeobfuscator.deobfuscator.transformers.stringer.HideAccessObfuscationTransformer

the running result

D:\deobf>java -jar deobfuscator.jar --config config.yaml
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Loading classpath
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Loading input
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Computing callers
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Transforming
[main] INFO com.javadeobfuscator.deobfuscator.Deobfuscator - Running com.javadeobfuscator.deobfuscator.transformers.stringer.HideAccessObfuscationTransformer
[Stringer] [HideAccessTransformer] Starting
[Stringer] [HideAccessTransformer] Found 1 decryptors





Deobfuscation failed. Please open a ticket on GitHub and provide the following error:
com.javadeobfuscator.deobfuscator.executor.exceptions.NoSuchMethodHandlerException: Could not find invoker for java/lang/Object axi/tuo/ip get(Ljava/lang/Object;)Ljava/lang/Object; @ Long/long/ago/there/was/k$a p(Ljava/lang/Object;I)Ljava/lang/String;
        at com.javadeobfuscator.deobfuscator.executor.MethodExecutor.execute(MethodExecutor.java:1248)
        at com.javadeobfuscator.deobfuscator.executor.MethodExecutor.execute(MethodExecutor.java:76)
        at com.javadeobfuscator.deobfuscator.executor.defined.MappedMethodProvider.invokeMethod(MappedMethodProvider.java:54)
        at com.javadeobfuscator.deobfuscator.executor.providers.DelegatingProvider.invokeMethod(DelegatingProvider.java:35)
        at com.javadeobfuscator.deobfuscator.executor.MethodExecutor.execute(MethodExecutor.java:1394)
        at com.javadeobfuscator.deobfuscator.executor.MethodExecutor.execute(MethodExecutor.java:76)
        at com.javadeobfuscator.deobfuscator.transformers.stringer.HideAccessObfuscationTransformer.lambda$transform$1(HideAccessObfuscationTransformer.java:124)
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
        at com.javadeobfuscator.deobfuscator.transformers.stringer.HideAccessObfuscationTransformer.transform(HideAccessObfuscationTransformer.java:120)
        at com.javadeobfuscator.deobfuscator.Deobfuscator.runFromConfig(Deobfuscator.java:477)
        at com.javadeobfuscator.deobfuscator.Deobfuscator.start(Deobfuscator.java:434)
        at com.javadeobfuscator.deobfuscator.DeobfuscatorMain.run(DeobfuscatorMain.java:106)
        at com.javadeobfuscator.deobfuscator.DeobfuscatorMain.run(DeobfuscatorMain.java:99)
        at com.javadeobfuscator.deobfuscator.DeobfuscatorMain.main(DeobfuscatorMain.java:36)

D:\deobf>pause

And the file
MCG_a2r.zip