Suddenly unable to login

All of a sudden I can’t login anymore and I’m running out of ideas. Client error is just “Failed to log in, please try again”

  • What’s your URL? nehalist.io
  • What version of Ghost are you using? latest

And

  • How was Ghost installed and configured?
  • What Node version, database, OS & browser are you using? node 18.20, db MySQL
  • What errors or information do you see in the console?
Failed to send email. Reason: Sending failed.

"Please see https://ghost.org/docs/config/#mail for instructions on configuring email."

Error ID:
    eb4d7cb0-0c47-11ef-84c2-0757fb050c7b

----------------------------------------

Error: Sending failed

There’s no more information than that, which makes it really hard to debug. I have tried to renew my mailgun credentials, restart ghost, etc… but nothing helped. There’s no errors in my mailgun dashboard.

e: It suddenly worked for a few hours and stopped working again now. I have absolutely no idea what’s happening and it’s really frustrating.

Anyone got an idea how to find out more about these errors?