Glad to hear you were able to get back into your vault. To protect yourself from future data loss, it is recommended to do the following:
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Create an Emergency Sheet and store it in a secure location (using a security envelope, if you wish); at a minimum, this emergency sheet should contain your username, master password, and 2FA recovery code — and, if applicable, the password(s) for any encrypted backup files.
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Regularly create backups of your vault data. There are different approaches to this, but there are two ways that I personally would recommend. One method (password-protected exports) is described here; if you use this method, remember to document your backup file password on your Emergency Sheet. An alternative method is to regularly create a copy of the contents of the folder
%LocalAppData%\Google\Chrome\User Data\Default\Local Extension Settings\nngceckbapebfimnlniiiahkandclblb(which contains the local vault cache used by your Chrome browser extension — assuming you are on a Windows system); for example, create a ZIP archive and copy the folder contents into the ZIP archive.