SuperCallouts doesn't need to be updated.
Here's the breakdown of what's going on in your log. You're getting the error Input string was not in the correct format which in other terms means a piece of text wasn't in the correct format for something like a number. I imagine this could be a configuration error in a customisation file for a plugin.
Just before the error, I can see Stop The Ped is loading. It might be worth temporarily removing the .dll file from GTAV/Plugins/LSPDFR (the file that runs Stop The Ped) and seeing if you still experience any issues.
If you don't, try a fresh installation of Stop The Ped. If you still experience issues, let me know! 🙂