“Warlock/Clan Leader.” No income is generated from mines.

Something went wrong, maybe someone knows what it is...???

I have a licensed copy of Heroes 5 at home, with patch 1.1 installed, downloaded from this site.

The problem is this: starting from the fourth campaign - the first chapter "Warlock - Clan Leader" - around the second or third week, the income from all my mines simply stopped being calculated, and what's more, the city buildings also stopped generating income((( As a result, I managed to reach the maximum level for about 2 weeks, but, of course, by the time of the tournament, I was left with practically no army! There is no money in the treasury, and no resources to sell(((

Guys, maybe someone knows what the problem is and how to fix it???