My current (ver.10) catalogs (converted) will not open since I updated to ver. 11

[Viola5CD8]

Since I updated to Lightroom Classic ver. 11 the catalog I was using (ver. 10) will not open (after I convert the catalog) and the app gives me the spinning beach ball icon and I have to force quit it every time. My older catalogues (ver. 2 and 3) will convert and open. 

Please help! I have months of editing in the most recent catalogue.. 

[GoldingD]

Give Adobe a chat

[Viola5CD8]

 

[GoldingD]

Does more info exist in that report, looking for that exception code 0x00000001c06b12c8 further down.

[dj_paige]

You could re-install LrC 10.4 and then see if your LrC 10 catalogs will open.