[Montellese]

When I play an episode and stop, it shows an error. It doesn't have the error for movies or music video.

https://drive.google.com/file/d/1hIsocO3...sp=sharing

From your logs it looks like it tried to update the resume position of your episode on the Emby server but the response from the server was invalid. I'll try it myself.
 

Also it doesn't seems adding the provider manually works. Every time I try it it fails. I will try to provide a separate debug log with just that.

Odd I just tried this by entering "http://localhost:8096" as the Emby base URL and it detected the proper Emby server and allowed me to choose the user etc. After that I was also able to add media imports and synchronize them.