Error 403 while logged in admin with all permissions

Hello,

When trying to create a collection, I get Error 403,

Error 403!

It seems that you are not allowed to access this content. Your user might have a role with insufficient capabilities. If that is not the case, check if you are correctly logged in on the WordPress Admin panel.

Request details: /collections/1268?context=edit

I am logged in on WP admin, and I have all of the permissions. I also downloaded the plugin Members and checked to see that I have all permissions, gave myself both the admin and Tainacan admin role, and created a separate login with the Tainacan Admin role, and that doesn’t work.

Importing a collection works for some items, but I can’t create or edit any items, collections, filters, or metadata.

This is all the same for multiple website hosting services I have tried to run Tainacan on, on clean WP installs. The only one that lets me do anything at all with Tainacan is heliohost. The server specifications for that are here: https://wiki.helionet.org/servers/virtual/tommy

I don’t know where to find the logs for errors on Tainacan, either.

On all hosts, I also get these on the Site Health screen:

A PHP session was created by a session_start() function call. This interferes with REST API and loopback requests. The session should be closed by session_write_close() before making any HTTP requests.

The REST API request failed due to an error.
Error: cURL error 28: Operation timed out after 10001 milliseconds with 0 bytes received (http_request_failed)’

I don’t know if it’s some kind of authentication problem or anything. My username and passwords are all fine for the mysql databases.

Thank you so much for your help, I hope we can figure this out.