AWS Access Key Identifiers – Error 429

Hello, i try since sunday to connect my AWS Access Key Identifiers with different keys generated from my amazon Business page, under:
Amazon Auto Links > Settings > Authentication

But continue to get this error:

2020-08-10 08:23:24 https://webservices.amazon.it/paapi5/searchitems AAL_815d064482c4775bb32a644fc78c4ec9
https://womanuniverse.it/wp-admin/edit.php?post_type=amazon_auto_links&page=aal_settings
429: Too Many Requests TooManyRequests: The request was denied due to request throttling. Please verify the number of requests made per second to the Amazon Product Advertising API.

• This topic was modified 4 years, 3 months ago by Noctis Lucis.
• This topic was modified 4 years, 3 months ago by Noctis Lucis.
• This topic was modified 4 years, 3 months ago by Noctis Lucis.

The page I need help with: [log in to see the link]