Getting this error a lot lately again

Unhandled exception
Exception code : 0xC0000 … etc.

Also, another error I got last month, and earlier in the year :

Unhandled exception
Exception code : 0xC0000005
Exception flags : 0x0
Exception : address: 0x00007FF63D89ABB0

Phew! Lol. Is there a fix to these? A new update?

In which version are you getting the error?
Please try installing the latest beta release v1.1.34.0. If you still get the error in this version, please share the %APPDATA%\FxSound\fxsound.dmp file generated by this version. It will help us root cause the error.