Installed 1.0.0 and wiped out my entire playlist file fro, 0.9.3. And now I can't reinstall 0.9.3. Running Firefox 93.0. Please help!

I have two separate Playlists for Bing Crosby. When I add a file or folder into one of the Playlists it goes into both. When I Remove from the wrong Playlist it's removed from both Playlists. Been using Strawberry since inception and this never happened before. I'm running 0.9.3 under Win 10 20H2.
Would appreciate help. Thank you.

I inadvertently deleted a Playlist and need to restore it.

@nbhms said in Your GStreamer installation is missing a plug-in.:

gstreamer1.0-libav

I'm getting a message GStreamer plugin is missing. Many of my music files were wiped out after receiving that message (I was trying to load a new folder). I have the files backed up but don't know how to reload them. Can you help? Thank you.

P.S Running Win 10 Pro, 64 bit.

@johnsv
I'm getting a message the GStreamer plugin is missing but the link you used isn't working. Many of my music files were wiped out. I have them backed up but I don't know how to reload from backup. Can you help? Thank you.

@jonas
The link to the GStreamer plugin in your your message doesn't work. I'm getting a message the GStreamer plugin is missing and I don't know what to do. Many of my music files were wiped out. Can you help? Thank you.