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DSS failing to start

Level 1
DSS failing to start
I have installed the Ubuntu Linux subsystem on Windows and installed DSS 5.1. While starting the DSS, I am getting the below error:

/home/ganesh/DATA_DIR/bin/dss restart
Shut down
Waiting for DSS to stop ...
DSS stopped
Waiting for DSS supervisor to start ...
backend STARTING
ipython STARTING
nginx STARTING
DSS started, pid=7436
Waiting for DSS backend to start ............................................................
*** dss : Warning: DSS backend still not started after two minutes.
It might still be initializing, and taking longer than expected, because the server is heavily loaded, or it might be a permanent failure.
You can re-check its status using the following command:
/home/ganesh/DATA_DIR/bin/dss status
You can look for startup error messages in log file:
/home/ganesh/DATA_DIR/run/backend.log



Checking the backend.log gives the below errors:



OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
[0.006s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:/dev/stderr instead.
Unrecognized VM option 'PrintGCTimeStamps'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
[0.002s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:/dev/stderr instead.
Unrecognized VM option 'PrintGCTimeStamps'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Tried downgrading JDK to 10 but it is not available on any repository. Can someone help to solve this issue?
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