Hello, Recently my GPG keys stopped working in Thunderbird. I didn't make any changes. From one day to another Thunderbird started not recognizing my key pair. Additionally, my private key has disappeared from my computer, it is not in the settings folder it should be in. When I access the Thunderbird Profiles folder I see that there are files named as corrupted "Secring.gpg.corrupt". See the attached image. What is the step-by-step to solve this problem? I would also like to know if anyone knows what may have caused this type of problem.

Thanks!