Both 100.33 and 190.465 are token-related errors. You can solve these errors by disconnecting Meta Pixel from the Conversion API Gateway and then adding it again to the data source.

1. Go to the Overview menu → click three dots next to the pixel → select Disconnect data source.

2. Then, you need to add a data source once again. Click on Add data source.

3. Click Get Started on the box Connect to Meta Business Account → Continue as a Facebook user. With the further steps, click on Continue to finish the setup.