Typically a Visual C++ error means you need an updated version of the Microsoft Visual C++ package. You can download that below:
https://support.microsoft.com/en-us/...al-c-downloads
When the error comes up loading a league though, I'm not 100% sure that will fix things. It may be that the league is corrupted.
If you've been having multiple corrupt leagues, which it sounds like has been the case, then maybe it's not just a one off but there may be something going on with your system that's creating the corruption.
There are a few things that can cause league corruption.
This potentially includes unexpected system/game shutdowns or crashes especially while a league is saving, bad sectors on the hard drive the game is saved to, memory glitches on your computer (especially possible if the league is left open for very long periods of time without the game being shut down or restarted) or occasionally interference from other programs.
Some of what you might do to prevent that from coming up again would be to regularly defrag your hard drive as well as check it for errors, make sure to shut down OOTP when you're not playing it, especially not keeping a league open for long periods of time while doing something else, occasionally shut your computer off or at least restart it and also run as few other programs in the background at the same time as OOTP as possible.
For programs on your system that need to be running at the same time, like an anti-virus or firewall, it's a good idea to add OOTP to their whitelist.