There's a bug (actually a design flaw) in Share the Load https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1356838246 where its author hard coupled his mod to Extended Storage version 3.4.1.1 (actually against whatever was the current 1.0 branch active at the time StL was built - which just happened to be 3.4.something).

That of course totally does not work once there is any change in ES, and will not work for any change in the future... ever. The update for 1.1 was such a change.
It's a horrible, horrible bad idea... which just happened to not blow up yet. Well, now it has done so - "Ugggggggh" - go and blame Uuugggg

I'll see if I can't help Uuugggg untangle this mess.