I used melda production plugins, they worked. I accidentally turn on old audacity and now I can't make plugins work.

I am now getting failed to the registry, and other errors. Please help me to fix this., I CAN’T USE MELDA PRODUCTION PLUGINS ANYMORE. Please help me solve this. thanks for answers

The newest version of Audcaity for Windows is available in 32 & 64-bit, (previously only 32-bit).
The plugins need to match the version of Audacity.
Luckily the MELDA plugins are available in 32 & 64-bit …