n8n Update Error: How Do I Fix the 'Credentials Cannot Be Decrypted' Issue?

I updated n8n last night to version 1.75.2 from the previous version and everything worked fine until today. When starting n8n, I encountered an error saying that my credentials cannot be decrypted and advised me to check the encryption key. I confirmed that the key in my server’s .env file remains unchanged.

Here is my configuration snippet:

version: 1.75.2  
DB: default  
own  
docker  
Ubunto 24.0.4

I hope I don’t need to recreate all my credentials. Has anyone experienced this issue or knows how to resolve it so I can continue working? Thanks!