Unfortunately, I was not able to replicate your errors on my DVA1622. have installed both mediaserver and the videostation so I can get as close as possible to your setup. I'm still getting successful patch. Here is my screenshot.
Your setup must have some condition which breaks the library. Do you have any addons from arpl ? I didn't have any, plain vanilla setup in my arpl test.
are you able to test this library? I have added an additional NOP to the library. Since I'm not able to debug the the condition myself and replicate your errors. I'm only able to guess wildly the condition in the library. You have to test the libsynoame-license.so from the attachment I have added. Replace the existing library ( I'm not 100% it will work, give it a try. )
libsynoame-license.so