I setup a proxy IP (failed to setup) and now Discover is giving errors when trying to update for some PPAs

Help
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5

Figured it out:

Discover uses an sql lite db located at: /var/lib/PackageKit/transactions.db

Install sqlitebrowser
sudo apt install sqlitebrowser
Then:
sudo sqlitebrowser /var/lib/PackageKit/transactions.db

Open the proxy table and delete offending entry.

This problem happened after I setup a system wide proxy. Not sure why.

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