How to remove stuck cam lock fastener?

Does anybody know how to remove stuck cam lock fasteners? They are stuck because the cam bolts came loose and I'm unable to push them back.

https://preview.redd.it/3c58y701qogh1.png?width=2448&format=png&auto=webp&s=eae0fd208ee37d32c005eb7cba2a666366df9a62

I also tried to gently remove the plastic thing without damaged the panel, but it seems impossible.

Here is the plastic fitting:

https://preview.redd.it/43in44sfqogh1.png?width=400&format=png&auto=webp&s=d2e3d79693b783eb2d4899728aee651cffc5ce4e

And here is the cabinet I'm trying to fix:

https://preview.redd.it/you7rufsqogh1.jpg?width=3264&format=pjpg&auto=webp&s=fc3a6e6d3fe56b82d84ffeb6d3ceb9a0299af309

Thanks!