pycharm.sh on Amazon Unix : Start Failed: Failed to initialize graphics environment.. OpenJDK 64-Bit Server VM warning..

Would be great to get pyCharm to run on my amazon EC2, please?

here is what happens below:

export DISPLAY=:0.0
cd /opt/pycharm-community-2020.1.3/bin
./pycharm.sh

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0
and will likely be removed in a future release.
Start Failed: Failed to initialize graphics environment

amazon unix version is:
4.14.177-107.254.amzn1.x86_64

please, help!