Issue started when getting an error when trying to authenticate with CiviMobile - via phone. I msged the CiviMobile folk and they replied, copying me with this note:
When we use any CIviCRM API (For example: https://chasethemusic.org/wp-json/civicrm/v3/rest?entity=Contact&action=get&api_key=(*KEY1*)&key=(*KEY2)&json={"sequential":1}) we have the next error: { "code": "rest_not_logged_in", "message": "You are not currently logged in.", "data": { "status": 401 } } . But we still think the problem related with WordPress code (plugins, maybe Core code). You can also address issue about this error to developers of "CiviCRM WP REST API" plugin(https://github.com/mecachisenros/civicrm-wp-rest).
At this point, I noticed a Word Press Site Health error - The REST API request failed due to an error. Error: [] cURL error 28: Operation timed out after 10001 milliseconds with 0 bytes received
and also a loopback error - The loopback request to your site failed, this means features relying on them are not currently working as expected. Error encountered: (0) cURL error 28: Operation timed out after 10001 milliseconds with 0 bytes received_
I disabled all WordPress plugins. Then, added them back. Turns out re-activating CiviCRM brings back these errors (which may be the cause of the problem with CiviMobile?).
WordPress Site Health contains critical errors unless CiviCRM is disabled makes it seem like the problem/error isn't real. So, maybe it's not related to the CiviMobile API / CiviCRM WP REST API situation? But???
I don't know if you have any other hints on where I should look.
CiviCRM 5.28.2 WP 5.5.1 PHP 7.4.9 CiviMobileAPI 5.3.0 CiviCRM WP REST API 0.1
THANKS! ..clark