Hi and welcome back,
This is a common issue. Over time the door latch gets filled with dirt and all the grease dries out. It keeps getting stiffer until it wont move anymore.
You need to pop the door panel and remove the door latch. Soak it in gas or the like and clean it out real well. Make sure everything is moving good, Re-lube it with white lithium grease or I prefer using chain lube and reinstall.
https://www.2carpros.com/articles/door-panel-removal
Let me know how it works out.
Rich
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Saturday, September 28th, 2019 AT 2:56 PM
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