[Konsta16]

And here is the log: https://paste.kodi.tv/xoqafovaso.kodi

Android 5.x is old and often has problem with video codec
you can try disable VP9 and also HEVC profiles in add-on Expert settings  

Just to update you that my problem is fixed now. Based on the recent problems with playback with ver 1.2.1 (symptoms were the same as mine), I went back to older versions from your git , started with v0.16.4 and... it worked! Then gradualy moved up to 1.2.0 and... still worked! I was a bit confused as my log clearly shows that probelmatic ver was aslo 1.2.0, so I tried to install it again from master zip, I originaly used and... didnt work. I mean problem was back. So would it mean that your master file is somehow different from releases versioning page (source code.zip) and that delta was causing issues? Even more interesting is that I loaded now ver 1.2.2 and... it still works! I will now play around with this addon but seems like a great one! Many thanks!