Solved! How to fix "settings keeps stopping" error whenever i access wifi IP setting and proxy setting under andvanced wifi settings

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Jun 18, 2019
Whenever i select a certain wifi connection and tap on the advance wifi settings then tap on to change the IP setting to static or to add a proxy connection, settings keeps on crashing. It always gives me an error ("settings keeps stopping") keeping me from accessing the IP setting and proxy setting. What should i do to solve this?

What i tried:
Clearing cache files on phone and on settings app.
Freed up memory.
Factory reset (it solved the problem but a few days later the problem came back after installing some apps)

Android ver: 9
Model: A50
If the problem went away after a reset, but then returned after installation of new apps, then I would be looking at one or more of the apps as the problem.
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