Getting too many open files(or possibly communication error) error

[AKoseki]

After starting the app, I was getting an too many files open error, so I've increased the open files limit from 1024 to 100000; Still it errored after a while:
(I'm running it inside a screen to keep it alive)
https://pastebin.com/0c7MsGDn

Or is it something else?

upload queue no longer empty! (62454)
response length: 0:
terminate called after throwing an instance of 'std::runtime_error'
  what():  upload response length was not 27 bytes long! something went wrong

The app logged in correctly and created and deleted all the files normally, the test passed; however when running it, it closes like that;