Why does the "moving panel" get stuck?

So, we have a ras-13pkvp-e from toshiba in our living room. Now, about a year, year and a half, we hired a guy to come and do some maintenance (properly clean it mainly and do some inspection). All was great. He removed the entire plastic cover from it, and only the "insides" were left on the wall. He did what he did, and put the plastics on again. After that, the front "moving panel" as it's described in the manual, gets stuck and we have to help it get up, otherwise it will literally stay down until we turn it off and on again. Is there any way I can fix it? I have some videos below of it getting stuck and some pictures of the hinges and the inside if you want to take a look. Thanks.

Here is the AC making a failed attempt to open the moving panel on it's own
(which is obviously should have worked)

And here it is opening normally after I help it though, which should obviously not happen.

And here is again, opening from the side, of course after I have helped it

This is what it looks like from the side with the moving panel opened

This what it looks like from the bottom, again with the moving panel up

This is what it looks, with the panel opened, and the whole thing popped up (the same way you do it to change the filters

This is how it looks with the entire front plastic fully opened

And finally this is what the left side looks like

(I probably included wayyy to many pictures that were really not needed)