I had a similar issue and Google pointed me to this issue. However disabling admin toolbar extra tools did nothing for me. Later I found this issue: https://www.drupal.org/project/drupal/issues/3413508 🐛 Admin page access denied even when access is given to child items RTBC and that turned out to be the actual cause.
Marty2081 → created an issue.
My apologies, here is the correct path file.
Argh, I seem to have uploaded the wrong patch file. My bad.
Here is a patch that handles both exception types:
The decrypt() method potentially throws 2 types of Exceptions. This is a snippet from the comments in the interface:
* @throws \Drupal\encrypt\Exception\EncryptException
* Thrown when decryption fails.
* @throws \Drupal\encrypt\Exception\EncryptionMethodCanNotDecryptException
* The method should throw this exception when the plugin can not decrypt
* (i.e. use a public key).