Map generation using the alternative IRMG map generator.

After installing TE, the loading error indeed disappeared, but now the game crashes after the second turn. Observing the lack of text in the descriptions of some items in the English version, I assume that the mod was made for the Russian version. In general, would anyone be willing to upload the image of the Russian ToE somewhere and send me the link?

I would like to draw your attention to the fact that the TE mod is made for Multiplayer, and single-player is not supported in the "standard" TE mod.
It is possible to play the "standard" mod in hotseat mode, where the opponent is a computer player, but in this case, the turns may be very long - the AI does not understand how to break through the portals to adjacent areas with a standard army in the first week.
Somewhere on the league forum in the topic
Creating Tournament Edition (and Criticizing), Vindicator posted TE, adapted for playing with AI - an army of 2-5 archangels and a built-up guild of mages at the start.

There was a link to Heroes, I think, on the description page of Noom's stream on GoodGame.