After deleting the keys with the command "security delete-keychain", I opened Xcode and it created the keys again automatically. The Distribution Key had accents in my name, I removed the accents, and everything worked out. Now I can publish again, with KeyChain working.

One solution, to retry the problem... with apple developer, works fine, with apple distribution , via Xcode, crash... My results: security: SecKeychainDelete: UNIX[No such file or directory] ... But KeyChain works again... "This works for me: I checked my keychains in terminal with command: security list-keychains There were two keychains with invalid path on my computer, "Apple Development" and "Mac Developer" keychains in /private/var/... folder. I deleted the the two keychains in terminal with command: security delete-keychain [keychain with invalid path] Some message was displayed, but keychain was successfully removed.  security: SecKeychainDelete: UNIX[No such file or directory] Now Keychain access works again. I hope this helps."

When adding the distribution certificate by Xcode, KeyChain crashed again. I will try again with a new user.

I created a new user on the Mac, with the same AppleID, and so far so good, the keychain has opened at least.

Same behaviour. 2 weeks ago. One friend help me when i need distribute. Its terrible. Answer from apple: "Recent Similar Reports: Less tha 10 Resolution: Potential fix identified - For a future OS update" I updated the macOs Big Sur - version 11.2, and i have the same problem.