Maybe you need remove nightly version, if you have.
sudo apt-get install ppa-purge
sudo ppa-purge ppa:mutlaqja/indinightly
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I have try 2 commands below and kstars is back, but ekos is dead.
sudo ln -s libindiclient.so.2 libindiclient.so.1
sudo cp /lib/x86_64-linux-gnu/libindiclient.so.2 /lib/x86_64-linux-gnu/libindiclient.so.1
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