Hi Etienne

Thank you for reaching out to us.

You need to check the redirect URI in your database and change it if it isn't the same as your website's domain. Also, please check if this URI is the same in your Google account console.

In your database, you have to find the wp_options table:

In your case, it is possible for it to have a different prefix but it will end like your_prefix_options. 

Then you have to find the option name amelia_settings in this table.

When you find that you have to edit that property and to find there the string redirectURI , so you will probably find something like this:

 It needs to have the escape characters " \ ", so don't remove those. Simply check if the URI is the same as in Amelia/Google Calendar Settings and if it isn't, please modify it here. Please note that if you use https you will need to update it also in redirectURI option.

When you finish with this please check if the URI is the same in the field Authorized redirect URL's on "Create OAuth client ID" section in your Google credentials section.

Sometimes this issue comes up, mostly when there is security involved so there is a mismatch in http/https and sometimes users don't press Enter (after typing the domain in the required field in 'Authorized redirect URIs') to add it before clicking on 'Save' in the Google Cloud Platform. So the field stays empty and causes the issue. This is why you need to go on in the database and change it manually. 

Another thing could be that the plugin may have added too many connection tokens in the database. But you have already checked this and since the table is empty as you said that means this is not the case with you.

I hope this helps, do let us know if you need any further assistance.

You are most welcome I am glad to hear that

If there is anything else we can assist you with please don't hesitate to open a new ticket.

Have a wonderful day!