How to fix Adsense “Number of ads you can show has been limited” error ?

1. Remove ads.txt file from your website dashboard. 
2. Remove ad unit ad codes from all of your website, widget, or on any other page/posts of your blog/website
3.  Turn off auto ads and archive ads unit from Google AdSense account if you are using WordPress Disable ads inserter plugin if you are using it on your blog/website.

Remove ads.txt file from your website dashboard/root folder of the hosting server.

While setting AdSense on your blog, Google AdSense recommends adding ads.txt(downloaded from Google AdSense) in your website dashboard/host server’s root folder. This text file helps AdSense to track your traffic source and activity on your blog. When you will remove this ads.txt file from the website dashboard/root folder, you will receive one more error message as “Earnings at risk – You need to fix some ads.txt file issues to avoid severe impact to your revenue.” You don’t need to worry about this message as this can be fixed later by just adding ads.txt file in your website dashboard or root folder of the hosting server.

Once the error message i.e. “Number of ads you can show has been limited” gets disappear from your Google AdSense account, you just need to changes the below settings.

1.  Add ads.txt file in your blog/website Dashboard 
2. Activate the auto ads option in the Adsense ads dashboard 

Within 24hour your website/blog will start showing ads using your Google Adsense account.

 Note: Only enable auto ads, don’t add manually created ads unit at least for 2 weeks, otherwise you will have to repeat the above process again if the Google Adsense team put your account under review.