On a successful connection, the popup connect without a errors and without a re-opened modal
Modal windows doesn't open or opens in a loop
Check the correct installation in the previous step & check if you have added files from the files.zip archive. You can manually check by following the direct path link yourdomain.com/scripts/bip39.js
Error when selecting wallet in modal
Most likely you have inserted the script in the wrong place, for example in <body> or you have installed the draining class on all existing objects by setting the class incorrectly. And check to see if you have installed the script more than once. <script ... src="xxx-xxx-xxx-xxx.js">