Hi, Welcome to the Forum TheFinesseKid !
Here are all important links:
viewtopic.php?f=1&t=4740
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If sounds like you have lost files in your installation, maybe even in windows(?), but the lmms-part of this is best tackled with a re-installmy computer recently crashed, after the crash i have been unable to see any words on LMMS. Im running Windows 10.
First and fore most BACKUP!!!
All your own stuff
BACKUP!!!
Then after you BACKUP!!!
Then
Follow https://lmms.io/wiki/index.php?title=In ... w_versions