You got an error that I am also seeing for the first time. Uninstall the plugin and install again, the ipk version. Do not update e2iplayer because only Zadmario repo can be updated, not Blindspot76 repo in e2iplayer settings.
I removed Blindspot76 version and installed zadmario, have still http errors. Do you know where download the ipk for the last version of zadmario?